Skip to main content

Suicidal behaviour across the African continent: a review of the literature



Suicide is a major cause of premature mortality worldwide, but data on its epidemiology in Africa, the world’s second most populous continent, are limited.


We systematically reviewed published literature on suicidal behaviour in African countries. We searched PubMed, Web of Knowledge, PsycINFO, African Index Medicus, Eastern Mediterranean Index Medicus and African Journals OnLine and carried out citation searches of key articles. We crudely estimated the incidence of suicide and suicide attempts in Africa based on country-specific data and compared these with published estimates. We also describe common features of suicide and suicide attempts across the studies, including information related to age, sex, methods used and risk factors.


Regional or national suicide incidence data were available for less than one third (16/53) of African countries containing approximately 60% of Africa’s population; suicide attempt data were available for <20% of countries (7/53). Crude estimates suggest there are over 34,000 (inter-quartile range 13,141 to 63,757) suicides per year in Africa, with an overall incidence rate of 3.2 per 100,000 population. The recent Global Burden of Disease (GBD) estimate of 49,558 deaths is somewhat higher, but falls within the inter-quartile range of our estimate. Suicide rates in men are typically at least three times higher than in women. The most frequently used methods of suicide are hanging and pesticide poisoning. Reported risk factors are similar for suicide and suicide attempts and include interpersonal difficulties, mental and physical health problems, socioeconomic problems and drug and alcohol use/abuse. Qualitative studies are needed to identify additional culturally relevant risk factors and to understand how risk factors may be connected to suicidal behaviour in different socio-cultural contexts.


Our estimate is somewhat lower than GBD, but still clearly indicates suicidal behaviour is an important public health problem in Africa. More regional studies, in both urban and rural areas, are needed to more accurately estimate the burden of suicidal behaviour across the continent. Qualitative studies are required in addition to quantitative studies.

Peer Review reports


Each year, the World Health Organization (WHO) estimates that almost a million people die from suicide worldwide [1] highlighting suicide as a serious global public health concern. The contribution of suicide to the global burden of disease is predicted to increase over future decades [2]. Data from the WHO mortality database indicate that 85% of the world’s suicides occur in low and middle income countries (LAMIC) [3], however, most of our knowledge and understanding about suicidal behaviour is based on information from high income countries, which may not be applicable in different cultural contexts.

Africa is the world’s largest and second most populous continent, with a population of over one billion people. The continent is heterogeneous, comprising rural, semi-rural and urban areas, a diverse range of religions, ethnic groups and cultures and several regions affected by war, political and economic instability. Despite high overall mortality rates [1] suicide rates in Africa have been thought to be very low [4]. However, little is actually known about the incidence and patterns of suicide across the continent. This information is of fundamental importance, both to help inform local, regional and national policy, and to provide a more accurate estimate of the magnitude of suicide globally.

Suicide research in Africa is limited by a lack of systematic data collection. With less than 10% of African countries reporting mortality data to WHO, official statistics are available for only 15% of the continent’s total population. Much of the available published suicide data are based primarily on small studies conducted in different regions and populations. Moreover, reported suicide mortality statistics are likely to underestimate the true magnitude of the problem as religious and cultural sanctions may lead to suicide being under-reported, misclassified or deliberately concealed.

Even less is known about attempted suicide across the African continent. It is estimated that for every suicide that occurs worldwide there are up to 20 suicide attempts [5]; however reliable data are not available for most countries. Data are often obtained from hospital records which underestimate the number of cases, as many individuals are only admitted to hospital if in a critical condition. Moreover, a lack of access to medical facilities, particularly in rural areas of Africa, means that many suicide attempters are unlikely to present to hospitals. As with suicide, socio-cultural factors also contribute to under-reporting.

This paper reviews the published literature on suicide and suicide attempts in Africa to address these knowledge gaps. Specifically, we aim to:

  1. i.

    Describe the incidence of suicide and suicide attempts across the African continent

  2. ii.

    Describe common features across the studies, including information related to age, sex and methods used

  3. iii.

    Identify key risk factors for suicide and suicide attempts.


A systematic search of PubMed, Web of Knowledge, PsycINFO, African Index Medicus, Eastern Mediterranean Index Medicus and African Journals OnLine was conducted for papers published between January 1998 and June 2013 that investigated fatal and non-fatal suicidal behaviour in an African country (incidence, methods or risk factors). Reference lists of relevant papers were examined for additional eligible studies and two of the authors (SB, HH), who have a longstanding interest in researching suicide in Africa, identified additional published publications from their personal collections of papers (Figure 1).

Figure 1
figure 1

Flow diagram for data extraction.

There has been much debate regarding the most suitable terminology to describe suicidal behaviour, a discussion of which is beyond the scope of this paper. In line with a newly proposed nomenclature for suicidal behaviour [6, 7] we will use the term ‘suicide’ to refer to suicidal acts that result in death and ‘suicide attempts’ to refer to suicidal actions that do not result in death. Evidence of suicidal intent (whether explicit or implicit) is central to this definition, however, intention is often difficult to establish. It is possible that in some instances, acts of deliberate self-harm involving no suicidal intent may have been included.

The search was conducted using a combination of the following search terms: Suicide [Mesh] or suicid? [tw] or ideation [tw] or self harm? [tw] or self injur? [tw] and was restricted to articles published in English, German or French. The precise approach varied across the different databases. Papers were manually reviewed to assess eligibility for inclusion. In line with a public health perspective on the overall burden of suicide and suicide attempts across the continent, we focused on general population samples of adults. Case reports and publications focused on one sex or age group only (e.g. children and adolescents), or groups considered at high risk for suicide (e.g. patients attending psychiatric institutions, patients suffering from HIV/AIDS) were not included.

For those countries with more than one eligible publication (e.g. South Africa), the best available data are presented; these were selected according to several criteria including the recency of the publication, total population coverage and level of detail available. National-level suicide mortality data for the five countries that report data to WHO (Mauritius, the Seychelles, South Africa, Zimbabwe and Egypt) was obtained from the WHO mortality database [8].

Deriving estimates of suicide and suicide attempts

If not reported in the publication, estimates of the annual incidence of suicide and suicide attempts per 100,000 population were derived wherever possible using the following calculation:

Number of suicides / suicide attempts reported per year Study population × 100 , 000

Where population data were not reported, estimates were obtained from on-line census data [911]; further details are provided in the table footnotes. Estimates are presented according to WHO mortality strata [1], which provide a way of describing the development of a country based on child and adult mortality rates. The mortality strata give a crude indication of the social and economic health of a country and allow countries at a similar stage of development to be grouped together. Thirty-eight percent of African countries are in highest mortality strata (Stratum E, high child and very-high adult mortality) and 58% in the second highest mortality strata (Stratum D, high child and high adult mortality). There were no data available for the 4% of countries in stratum B (Libyan Arab Jamahiriya and Tunisia).

The median annual suicide incidence rate was calculated within each stratum using the best available data for each country (Table 1). This estimate was then extrapolated to all countries within that stratum to give a rough estimate of the total number of deaths occurring each year.

Total population for all countries within a given stratum 100 , 000 × median incidence of suicide per 100 , 000 within a given stratum
Table 1 Incidence of suicide in African countries with published data identified by our systematic search of the literature

2012 population estimates for each country were sourced from WHO [33]; total population for countries in stratum D: 584,431,000 and stratum E: 469,722,000. Values were also calculated for the lower and upper quartile in order to illustrate the level of uncertainty within the estimate. Estimates across strata were then combined to provide a crude estimate of the total number of suicide deaths occurring in Africa each year. The figures presented are intended to provide only a rough estimate and need to be interpreted with great caution given the lack of suicide data for many countries, the variability in estimates both within and across countries, the lack of national-level suicide data and the likely under-reporting of suicide.

The recent Global Burden of Disease (GBD 2010) study [34] has produced estimates of country-specific suicide rates for Africa. We compared these estimates with those derived from our review of the published literature. The GBD study did not evaluate the incidence of attempted suicide, risk factors for suicide nor commonly used methods of suicide.



i. Suicide

The best available data for the incidence of suicide in each country are presented in Table 1. Data are available for 16 African countries which together account for approximately 60% of the total population of Africa; although frequently data are available for only a small proportion of the population within a country (Figure 2). The median incidence of suicide for the nine countries in the highest mortality stratum (E) was 3.3 [inter-quartile range 2.3 to 7.9] per 100,000 and for the seven countries in the second highest stratum (D) was 3.2 [inter-quartile range 0.4 to 4.6] per 100,000. Based on these data, we crudely estimate the annual number of suicides in Africa to be approximately 34,000 [inter-quartile range 13,141 to 63,757]; this is based on an estimated ~19,000 suicides in stratum D countries and ~15,000 suicides in stratum E countries. The overall annual incidence rate is estimated to be 3.2 per 100,000. This figure compares with an estimate of 49,558 suicides (median incidence rate 4.8 per 100,000) derived from the recent GBD study 2010 [34]. A country-level comparison of suicide incidence rates estimated in the GBD study and the best available data from our literature review is presented in Table 2. Literature-based estimates for specific countries were most discrepant from the GBD estimates for South Africa (higher), Zimbabwe (lower), Uganda (lower), Malawi (lower) and Tanzania (lower).

Figure 2
figure 2

Countries in Africa with suicide incidence data available.

Source: Wikimedia Commons, courtesy of Eric Gaba. National-level suicide incidence data are lacking for many African countries. *Countries for which national-level suicide incidence data are available.

Table 2 Comparison of global burden of disease estimates with published data identified by our systematic search of the literature

Several countries have data available from multiple publications including five for South Africa (mean annual estimates range from 10.9 to 32.5 per 100,000 population) [22, 2528] and two for Egypt (mean annual estimates 0.7 and 2.2 per 100,000 population) [13, 29], Senegal (mean annual estimates 0.7 and 3.7 per 100,000 population) [16, 30], Uganda (mean annual estimates 1.0 and 15.8 per 100,000 population) [23, 31] and the United Republic of Tanzania (mean annual estimates 2.3 and 3.2 per 100,000 population) [24, 32]. In addition, South Africa and Egypt have WHO mortality data available [8], and for both countries WHO rates are considerably lower than in the publication (South Africa 0.9 vs. 17.2 per 100,000 [22]; Egypt 0.1 vs. 0.7 [13]). Additional studies from South Africa [2528] and Egypt [29] report similarly high rates, indicating that WHO data are likely to be underestimated.

Secular trends

Data on secular trends in suicides are unavailable for many African countries. Six countries report suicide incidence data for five or more time points, including three countries from the WHO mortality database (Mauritius, Seychelles and Egypt). The trend for Mauritius (12 time points; 1955–2008) shows an initial decline in suicide rates followed by a substantial increase; rates increased from 1.7 in 1970 to 14.1 in 1990, after which rates have been steadily declining. Data from the Seychelles (5 time points; 1985–2008) show initially fluctuating rates which have been declining since 1998. Suicide incidence rates in Egypt appear to be relatively stable over time (5 time points; 1974–2009).

Trend data from peer reviewed publications are available for four countries. Similar to the findings from WHO statistics, data for Egypt show little variability in rates over time [13]. Trends in Cameroon (annual suicide incidence rates over 10 years;1999 to 2008 [12]) show a general increase in rates over time, with two notable decreases between 2001–2003 and 2006–2007. Rates increased substantially between 2003 and 2006 from ~1.5 to ~6.5 per 100,000 population. Rates in Ethiopia (annual suicide incidence rates reported over the 15 year period 1981/2 to 1995/6 [17]) vary substantially across time. Trend data are available for South Africa from multiple publications; one study shows substantial fluctuations in rates over time (2000–2007) [25], one minor fluctuations (2002–2008) [35], and one an initial decline in suicide rates followed by an increase (1996–2000) [28]. There is also some evidence to suggest that secular trends may be influenced by demographic factors such as age and race [36].

Sensitivity analyses

There is wide variability across countries regarding the time period over which suicide data were collected (range 1975–2009). In order to examine the impact of this on our estimates, sensitivity analyses were conducted excluding those countries where the majority of the data were collected prior to 2000 (Nigeria, Ethiopia, Senegal, Uganda and Zimbabwe). The median estimates for each stratum remained largely unchanged (stratum D: 3.2 and stratum E: 3.0).

We also conducted sensitivity analyses to examine the extent to which our estimate of the annual number of suicides in Africa differs when calculated using the mean as opposed to the median suicide incidence rate for each strata. When using the mean, the estimated number of suicide deaths was 42,199 (approximately 20% higher than our estimate of 34,000), but remained below the GBD estimate of 49,558.

ii. Suicide attempts

Data are available on suicide attempts for 11 countries, seven of which report rates per 100,000 (Table 3). Incidence rates vary widely from 0.1 per 100,000 in Ghana [14] to 100 per 100,000 in Namibia [21]. The remaining four studies report lifetime prevalence estimates for suicide attempts collected primarily from surveys. Estimates vary from 0.7% in Nigeria [37] to 6.0% in Liberia [38]. Two countries have data available from more than one publication (South Africa estimates range from 2.9%-3.4% [39, 40] and Ethiopia estimates range from 0.9%-3.2% [41, 42]). A summary of the best available data (range, median and mean) for both suicide and suicide attempts according to WHO mortality strata is presented in Table 4.

Table 3 Incidence of suicide attempts in African countries with published data identified by our systematic search of the literature
Table 4 Summary of data for suicide and suicide attempts in Africa according to mortality strata

Sex and age differences

i. Sex

Data on sex differences in the incidence of suicide are available for 13 countries (Table 1). All studies reported higher rates in males with most reporting a male to female ratio of at least 3:1.

Evidence for sex differences in suicide attempts is less clear. Data are available for 11 countries (Table 3), of which five studies report a clear female predominance [38, 39, 43, 45, 46], three studies find a clear male predominance [14, 17, 44] and three studies report similar rates for males and females [19, 21, 37].

ii. Age

Age-specific rates were available from WHO for five countries [8]. The lowest rates were generally found in those under the age of 25 with few suicides reported in children under 15 years (≤0.5 per 100,000). There was little variability in age-specific rates for Egypt (0.0-0.2 per 100,000). Suicide rates in the Seychelles increased with age until 55 years, after which there were no reported suicides. In Mauritius and Zimbabwe, rates were highest amongst older adults (aged 55+). Rates in South Africa were highest in those 15–54 and those over 75.

Only one publication reported age-specific rates of suicide per 100,000. In the United Republic of Tanzania [24] rates were highest amongst those aged 45–59 years (5.7 per 100,000) followed by those aged 30–44 years (4.0 per 100,000). Thirteen publications from eight countries reported either the mean or median age at suicide or the proportion within specific age bands [12, 13, 15, 19, 23, 26, 27, 2932, 47, 48], however these estimates should be interpreted with great caution as they are influenced by the age distribution of the general population. Mortality records are also often incomplete.

For suicide attempts, age information was reported in eleven publications from seven countries [17, 21, 37, 39, 41, 42, 4446, 49, 50]. These studies consistently showed highest rates amongst young adults (aged 15–30 years).

Methods used

Nineteen publications from ten countries reported methods used for suicide [12, 14, 15, 17, 19, 2227, 2932, 35, 48, 51, 52]. The best available data for each country are presented in Table 5. The predominant methods for suicide were hanging and poisoning, although rates varied considerably across studies (hanging 8% - 70%; poisoning 8% - 83%). Firearms were also a common method in some countries (range 0% - 32%). Further details about the poisonous toxins used were reported in eight countries. In Cameroon, Egypt, Malawi, Nigeria and Uganda most poisoning deaths were attributable to pesticides (typically organophosphorous, organochlorine and rodenticides) with low rates of medication overdose [12, 15, 19, 23, 29]. In comparison, studies from Senegal and the United Republic of Tanzania report higher rates of medicine overdose [30, 32], whilst similar rates of medicine overdose and pesticide poisoning were found in South Africa [27].

Table 5 Predominant suicide methods in African countries with published data identified by our systematic search of the literature

Nine publications from seven countries reported methods used for suicide attempts [14, 21, 41, 42, 4446, 49, 50]. The predominant method was poisoning which was reported in 26% [42] to 91% [45, 49] of attempts. Medicine overdose was more common than pesticide poisoning in Namibia, South Africa, Zimbabwe and the United Republic of Tanzania [21, 45, 46, 49], whereas pesticides were marginally more common in Uganda [44]. The most frequently used medications were antidepressants, antimalarials and psychotropic medications. Cutting was a common method in two studies [14, 21] and hanging in three studies [14, 41, 42].

Results stratified by sex showed some sex differences in methods [12, 15, 19, 24, 26, 29, 30, 32, 41, 42, 44, 48, 50]. For both suicides and suicide attempts females generally had higher rates of poisoning than males, whereas males were more likely than females to use violent methods such as hanging and firearms.

Risk factors

i. Suicide

Nine publications from four countries reported risk factors for suicide [12, 23, 24, 26, 31, 32, 47, 51, 53], often collected via psychological autopsies with relatives. Mental health problems were reported to play a role in up to 11% of suicides [12, 32]. Physical health problems were also reported [12, 24, 32, 51], for example in the United Republic of Tanzania, the rate of HIV was double amongst those who died by suicide when compared to the national prevalence for sexually active adults [32]. Alcohol and/or drug use was a prominent risk factor [12, 24, 26, 31, 32, 47, 51, 53], with one study reporting that alcohol was involved either directly or indirectly (via the drinking behaviour of significant others) in as many as 80% of suicides [53]. Studies in South Africa also found that approximately 40% of individuals who died by suicide tested positive for alcohol on blood assays [26, 47]. Interpersonal and social difficulties including family conflict, friendship or relationship problems and unwanted pregnancy [12, 23, 24, 31, 32, 51], and socioeconomic factors [12, 23, 24, 31, 32, 51] also play an important role.

The only case control study to investigate precipitating factors for suicide [23] found higher levels of psychological distress amongst individuals who died by suicide relative to road traffic collision victims, however, no differences were found in mental health problems, physical health problems, family conflict or drug/alcohol abuse.

ii. Suicide attempts

Ten publications from seven countries reported risk factors for attempted suicide [21, 37, 41, 4446, 49, 5456], most often via population surveys or interviews with patients/relatives. As for suicide, commonly identified risk factors included interpersonal and social difficulties [21, 41, 4446, 49], physical illness [41, 44, 45, 49] and socioeconomic factors [41, 44, 45, 49]. Mental health problems were a prominent risk factor [37, 41, 44, 45, 49, 54] with one study finding a four-fold increase in odds of suicide attempt amongst those with psychiatric disorder [54]. The risk of suicide attempt was considerably higher amongst those with multiple disorders [37, 54]. Alcohol/drug use was also reported as a risk factor [41, 44, 45, 49], with men more likely to report substance use than women [44, 49]. Several other risk factors were identified including elevated numbers of negative life events, feelings of guilt or shame, sexual problems, feelings of loneliness, poor self-esteem, childhood abuse/trauma, parent mental health problems and family suicidal behaviour [37, 44, 45, 49, 55, 56].

Qualitative research

To understand how risk factors may be connected to suicidal behaviour, qualitative studies are needed which are able to take more of the complexity of suicidal behaviour and the socio-cultural context into consideration [57, 58]. To our knowledge, only two qualitative studies on suicidal behaviour have been conducted in Africa to date; one on suicide and one on attempted suicide.

In post-conflict Northern Uganda, Kizza et al. [59, 60] conducted a qualitative psychological autopsy study among men and women in Internally Displaced Peoples’ camps. In this context, suicide in both sexes was found to be connected to men’s “loss of masculinity”. In order to understand what this means it is necessary to understand how the gender roles in this community had been before the war and how the war had changed these roles and responsibilities in a way that contributed to suicide for both men and women, albeit in very different ways [59, 60].

Quantitative studies on suicidal behaviour have commonly found religion/religiosity to be a protective factor. However, in a qualitative interview study with suicide attempters in Ghana, Akotia et al. [61] found that that was not necessarily the case. For instance, some individuals had attempted suicide because they were disappointed with God; they had fulfilled their religious obligations and did therefore not understand why God still allowed suffering in their lives.


Knowledge about suicide in Africa is limited with less than 10% of countries reporting mortality data to WHO. This investigation aimed to increase our understanding of the prevalence, patterns and risk factors for suicide and attempted suicide across the continent by reviewing and consolidating the available literature.

Suicide incidence rates have been reported in only 16 countries which together account for approximately 60% of the total population of Africa. However, national-level suicide data are lacking for most of these countries. There was considerable variation in the rates reported, both within and across countries. This could reflect the unreliability of the data, or alternatively could highlight the importance of the cultural context. Suicide rates in urban South Africa are reported to be much higher than in the other countries [22], perhaps due to the better quality and reliability of mortality data available.

Based on the limited available data, we crudely estimated the annual number of suicides in Africa to be approximately 34,000 [inter-quartile range 13,141 to 63,757]. This figure was calculated from median incidence rates [according to mortality strata] and is intended to provide only an approximation to the incidence of suicide in Africa. This estimate is somewhat lower than the recent GBD 2010 estimate of 49,558 deaths [34], however our figure is based only on available published data and does not take into account the geographical, sex or age structure of countries. It is not possible to judge which estimate is more accurate as each is based on different sources and assumptions. Any current estimates of suicide in Africa need to be interpreted with great caution given the absence of data for many countries, the variability of estimates and the lack of national-level statistics. Moreover, the huge cultural and religious diversity found both within and across African countries together with geographic (i.e. rural/urban), economic and political differences mean results based on data from one population or region are unlikely to be generalisable to another. Additional research is urgently needed, particularly in rural and economically deprived regions where suicide data are largely absent. Studies from India, China and Sri Lanka indicate that rural areas have exceptionally high rates of suicide [6264], most likely due to easy access to pesticides combined with poor access to medical facilities and ineffective treatments.

The lifetime prevalence of suicide attempts also varied across studies, with a median estimate of 2%-3% [range 0.7-6.0%]. This compares with 0.4-4.2% found in the WHO SUPRE-MISS community survey of LAMICs [40] and 2.7% from the 17 countries in the World Mental Health Surveys [65]. Worldwide it is estimated that there are up to 20 suicide attempts for every suicide death [5] but across much of the African continent, the ratio of deaths to attempts appears to be much lower than this. Whilst this ratio does vary globally by country and suicide method, it could indicate that the true incidence of suicide in Africa is underestimated. In many African countries, suicidal behaviour carries negative religious and cultural sanctions and therefore may be under-reported, hidden or deliberately misclassified. In addition, the uncertainty in establishing suicidal intent may lead some suicidal acts to be misclassified as unintentional. There is some evidence from South Africa to suggest that suicide deaths by poisoning, jumping and railways are more likely to be misclassified than those by firearms or hanging [66].

Worldwide, three to four more men die by suicide than women. The ratio is much lower in Asian countries [67, 68] and in China, more women die from suicide than men, particularly in rural areas [62, 63, 68]. Available evidence from Africa suggests that sex differences in suicide are broadly consistent with international trends, with all countries reporting a male predominance, typically at a ratio of 3.0:1 or higher. However, most studies have been conducted in urban areas and it is not clear whether this pattern would also be seen in rural areas of Africa. The sex discrepancy identified in this review may in part be explained by a propensity for men to use more lethal methods such as hanging and firearms, whereas the most common method used by women was poisoning.

Clear conclusions cannot be made regarding sex differences in attempted suicide in Africa as some studies reported a male predominance, some a female predominance, and others no clear sex differences. These findings contrast with international trends where suicide attempts tend to be 2–3 times higher in women than in men [50, 69].

Knowledge of the most prominent methods used for suicide in Africa is vital for the development of prevention strategies, as restricting access can be an effective way of reducing suicide rates [2, 70, 71]. According to WHO, pesticide poisoning is now the most common method of suicide worldwide [72] and is frequently reported in China, Sri Lanka and India, particularly in rural areas [64]. Findings from this review suggest that pesticide poisoning is also a prominent method in Africa. Moreover, the proportion of suicidal acts involving pesticides is likely to be underestimated as data are largely absent in rural areas where pesticides are easily accessible and likely to be a commonly used suicide method. Evidence from Sri Lanka [73, 74] suggests that reducing access to pesticides by banning those that are most toxic to humans is an effective means of reducing suicide rates. Improved medical management for pesticide poisoning is also urgently needed in order to reduce the lethality of this method. Poisoning with over-the-counter medications was also a common method used in both suicide and suicide attempts. Legislation regarding quantities of over-the counter medication may help to reduce overdose rates [75].

Given their high lethality, it is not surprising that rates of hanging and firearms were higher for suicide than for suicide attempts. The use of firearms as a method for suicide varied considerably across studies [range 0-32%], probably reflecting differences in the availability of this method. Prevention approaches should focus on restricting access to firearms and promoting safer storage [70, 71].

A greater understanding of the antecedents to suicide is important in order to identify high-risk groups and to develop effective prevention strategies. Suicide is multi-factorial, involving a complex interplay of biological, social, cultural and psychological factors. Information about suicide risk factors in Africa is typically obtained retrospectively, either from medical records which are often incomplete, or from relatives’ reports which may be biased. Case control and cohort studies are required to better characterise risk factors for suicidal behaviour in Africa. For example, several studies reported high rates of unemployment amongst those who had died by suicide; however, as rates of unemployment are generally high within the population, the absence of a suitable comparison group means that these data are not informative.

Risk factors for suicide and suicide attempts identified in this review include physical health problems, psychiatric disorder or symptoms, drug and alcohol use/abuse, interpersonal and social difficulties and socioeconomic problems. The type of risk factors that are identified and their relative importance is likely to vary across different regions and population groups. The importance of taking into consideration the socio-cultural context has been highlighted by qualitative studies [5961]. Such studies are crucial in order to build locally relevant suicide theory and to understand how, when, where and for whom risk factors may be connected to suicidal behaviour [57, 58].


Knowledge about suicide and suicide attempts in Africa is important, not only for African policy but also to improve the precision of global estimates of the magnitude of suicide. Findings from this review suggest that suicide is an important public health issue in Africa, with reported figures highly likely to underestimate the true incidence. Systematic data collection is urgently required in order to compile reliable suicide mortality and morbidity statistics across the continent. There is also a need for more qualitative studies, which are able to take into account the socio-cultural context.



World Health Organization


Low and middle income countries

GBD study:

Global Burden of Disease study.


  1. World Health Report 2004. WHO, Geneva 2004

  2. Public health action for the prevention of suicide. A framework. WHO, Geneva 2012

  3. Krug EG, Dahlberg TT, Mercy JA, Zwi AB, Lozano R: World report on violence and health. 2002, World Health Organization, Geneva

    Google Scholar 

  4. Wasserman D, Wasserman C: Oxford textbook of suicidology and suicide prevention: a global perspective. 2009, Oxford University Press

    Google Scholar 

  5. Suicide prevention (SUPRE). []

  6. Silverman MM, Berman AL, Sanddal ND, O'Carroll PW, Joiner TE: Rebuilding the tower of babel: a revised nomenclature for the study of suicide and suicidal behaviors part 1: Background, rationale, and methodology. Suicide Life Threat Behav. 2007, 37 (3): 248-263. 10.1521/suli.2007.37.3.248.

    PubMed  Google Scholar 

  7. Silverman MM, Berman AL, Sanddal ND, O'Carroll PW, Joiner TE: Rebuilding the tower of Babel: a revised nomenclature for the study of suicide and suicidal behaviors part 2: suicide‒related ideations, communications, and behaviors. Suicide Life Threat Behav. 2007, 37 (3): 264-277. 10.1521/suli.2007.37.3.264.

    PubMed  Google Scholar 

  8. Country reports and charts. available []

  9. Ministère de l'économie et des finances. Agence nationale de la statistique et de la demographie: Troisième Recensement Générale de la Population et de l'Habitat de 2002. 2008, Gouvernement du Sénégal

    Google Scholar 

  10. Zimbabwe. Central Statistical Office: Census 1992 Zimbabwe: Preliminary Report. 1992, Central Statistical Office

    Google Scholar 

  11. Zimbabwe. Central Statistical Office: Census 2002: National Report. 2004, Zimbabwe, Central Statistical Office, Central Census Office

    Google Scholar 

  12. Keugoung B, Kongnyu ET, Meli J, Criel B: Profile of suicide in rural Cameroon: Are health systems doing enough?. Trop Med Int Health. 2013, 8: 985-992.

    Google Scholar 

  13. Abdel Moneim WM, Yassa HA, George SM: Suicide rate: trends and implications in upper Egypt. Egypt J Forensic Sci. 2011, 1 (1): 48-52. 10.1016/j.ejfs.2011.04.010.

    Google Scholar 

  14. Adinkrah M: Epidemiologic characteristics of suicidal behavior in contemporary Ghana. Crisis. 2011, 32 (1): 31-36. 10.1027/0227-5910/a000056.

    PubMed  Google Scholar 

  15. Nwosu SO, Odesanmi WO: Pattern of suicides in Ile-Ife, Nigeria. West Afr J Med. 2001, 20 (3): 259-262.

    CAS  PubMed  Google Scholar 

  16. Guyavarch E, Pison G, Duthé G, Marra A, Chippaux J-P: Mortality due to external causes in three rural areas of Senegal. Eur J Popul/Revue Européenne de Démographie. 2010, 26 (4): 483-505.

    Google Scholar 

  17. Bekry AA: Trends in suicide, parasuicide and accidental poisoning in Addis Ababa, Ethiopia. Ethiop J Health Dev. 1999, 13 (3): 247-262.

    Google Scholar 

  18. Ziraba AK, Kyobutungi C, Zulu EM: Fatal injuries in the slums of Nairobi and their risk factors: results from a matched case–control study. J Urban Health. 2011, 88 (2): 256-265.

    PubMed Central  Google Scholar 

  19. Dzamalala CP, Milner DA, Liomba NG: Suicide in Blantyre, Malawi (2000–2003). J Clin Forensic Med. 2006, 13 (2): 65-69. 10.1016/j.jcfm.2005.08.006.

    PubMed  Google Scholar 

  20. Nizamo H, Meyrowitsch DW, Zacarias E, Konradsen F: Mortality due to injuries in Maputo City, Mozambique. Int J Inj Contr Saf Promot. 2006, 13 (1): 1-6. 10.1080/17457300500151705.

    PubMed  Google Scholar 

  21. Ikealumba NV, Couper ID: Suicide and attempted suicide: the Rehoboth experience. Rural Remote Health. 2006, 6 (535): 1-

    Google Scholar 

  22. Burrows S, Laflamme L: Suicide mortality in South Africa: a city-level comparison across socio-demographic groups. Soc Psychiatry Psychiatr Epidemiol. 2006, 41 (2): 108-114. 10.1007/s00127-005-0004-4.

    PubMed  Google Scholar 

  23. Kinyanda E, Wamala D, Musisi S, Hjelmeland H: Suicide in urban Kampala, Uganda: A preliminary exploration. Afr Health Sci. 2012, 11 (2): 219-227.

    Google Scholar 

  24. Mgaya E, Outwater A, Kinabo L: Suicide in the Dar es Salaam region, Tanzania, 2005. J Forensic Leg Med. 2008, 15 (3): 172-176. 10.1016/j.jflm.2007.06.002.

    PubMed  Google Scholar 

  25. Garrib A, Herbst AJ, Hosegood V, Newell ML: Injury mortality in rural South Africa 2000–2007: rates and associated factors. Trop Med Int Health. 2011, 16 (4): 439-446. 10.1111/j.1365-3156.2011.02730.x.

    PubMed  PubMed Central  Google Scholar 

  26. Scribante L, Blumenthal R, Saayman G, Roos JL: A retrospective review of 1018 suicide cases from the capital city of South Africa for the period 1997–2000. Am J Forensic Med Pathol. 2004, 25 (1): 52-55. 10.1097/01.paf.0000113862.03302.1d.

    CAS  PubMed  Google Scholar 

  27. Stark K, Joubert G, Struwig M, Pretorius M, Van der Merwe N, Botha H, Kotzé J, Krynauw D: Suicide cases investigated at the state mortuary in Bloemfontein, 2003–2007. S Afr Fam Pract. 2010, 52 (4):

  28. Meel BL, Leenaars AA: Human Immunodeficiency Virus (HIV) and suicide in a region of Eastern Province (“Transkei”), South Africa. Arch Suicide Res. 2005, 9 (1): 69-75. 10.1080/13811110590512958.

    PubMed  Google Scholar 

  29. Gad ElHak SA, El-Ghazali AM, Salama MM, Aboelyazeed AY: Fatal suicide cases in Port Said city, Egypt. J Forensic Leg Med. 2009, 16 (5): 266-268. 10.1016/j.jflm.2008.12.006.

    PubMed  Google Scholar 

  30. Soumah MM, Eboue BA, Ndiaye M, Sow ML: Aspects épidémiologiques du suicide à Dakar. Pan Afr Med J. 2013, 15: 10-

    PubMed  PubMed Central  Google Scholar 

  31. Kinyanda E, Ndyanabangi S, J N, H O: Suicide in rural war affected Northern Uganda. In proceedings of the XXV World Congress on Suicide Prevention of the International Association for Suicide Prevention: Suicide Prevention in Different Cultures:. 2009, October ; Montevideo: 27–31

    Google Scholar 

  32. Ndosi N, Mbonde M, Lyamuya E: Profile of suicide in Dar es Salaam. East Afr Med J. 2004, 81 (4): 207-211.

    CAS  PubMed  Google Scholar 

  33. Global Health Observatory Data Repository. []

  34. Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, Abraham J, Adair T, Aggarwal R, Ahn SY: Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet. 2013, 380 (9859): 2095-2128.

    Google Scholar 

  35. Bantjes J, Kagee A: Epidemiology of suicide in South Africa: setting an agenda for future research. S Afr J Psychol. 2013, 43 (2): 238-251.

    Google Scholar 

  36. Flisher AJ, Liang H, Laubscher R, Lombard CF: Suicide trends in South Africa, 1968–90. Scand J Public Health. 2004, 32 (6): 411-418. 10.1080/14034940410029469.

    PubMed  Google Scholar 

  37. Gureje O, Kola L, Uwakwe R, Udofia O, Wakil A, Afolabi E: The profile and risks of suicidal behaviours in the Nigerian Survey of Mental Health and Well-Being. Psychol Med. 2007, 37 (6): 821-830. 10.1017/S0033291707000311.

    PubMed  Google Scholar 

  38. Johnson K, Asher J, Rosborough S, Raja A, Panjabi R, Beadling C, Lawry L: Association of combatant status and sexual violence with health and mental health outcomes in postconflict Liberia. JAMA. 2008, 300 (6): 676-690. 10.1001/jama.300.6.676.

    CAS  PubMed  Google Scholar 

  39. Joe S, Stein DJ, Seedat S, Herman A, Williams DR: Non-fatal suicidal behavior among South Africans. Soc Psychiatry Psychiatr Epidemiol. 2008, 43 (6): 454-461. 10.1007/s00127-008-0348-7.

    PubMed  PubMed Central  Google Scholar 

  40. Bertolote JM, Fleischmann A, De Leo D, Bolhari J, Botega N, De Silva D, Thi Thanh HT, Phillips M, Schlebusch L, Värnik A: Suicide attempts, plans, and ideation in culturally diverse sites: the WHO SUPRE-MISS community survey. Psychol Med. 2005, 35 (10): 1457-1465. 10.1017/S0033291705005404.

    PubMed  Google Scholar 

  41. Alem A, Kebede D, Jacobsson L, Kullgren G: Suicide attempts among adults in Butajira, Ethiopia. Acta Psychiatr Scand. 1999, 100 (S397): 70-76.

    Google Scholar 

  42. Kebede D, Alem A: Suicide attempts and ideation among adults in Addis Ababa, Ethiopia. Acta Psychiatr Scand. 1999, 100 (S397): 35-39.

    Google Scholar 

  43. Agoub M, Moussaoui D, Kadri N: Assessment of suicidality in a Moroccan metropolitan area. J Affect Disord. 2006, 90 (2): 223-226.

    PubMed  Google Scholar 

  44. Kinyanda E, Hjelmeland H, Musisi S: Deliberate self-harm as seen in Kampala, Uganda. Soc Psychiatry Psychiatr Epidemiol. 2004, 39 (4): 318-325. 10.1007/s00127-004-0748-2.

    PubMed  Google Scholar 

  45. Ndosi NK, Waziri MC: The nature of parasuicide in Dar es Salaam, Tanzania. Soc Sci Med. 1997, 44 (1): 55-61. 10.1016/S0277-9536(96)00094-9.

    Google Scholar 

  46. Chibanda D, Sebit M, Acuda S: Prevalence of major depression in deliberate self-harm individuals in Harare, Zimbabwe. East Afr Med J. 2002, 79 (5): 263-266.

    CAS  PubMed  Google Scholar 

  47. Burrows S, Vaez M, Butchart A, Laflamme L: The share of suicide in injury deaths in the South African context: Sociodemographic distribution. Public Health. 2003, 117 (1): 3-10. 10.1016/S0033-3506(02)00019-7.

    CAS  PubMed  Google Scholar 

  48. Seleye-Fubara D, Nwosu S: Violent deaths in Port Harcourt, Nigeria. Niger J Surg Res. 2004, 5 (3): 124-128.

    Google Scholar 

  49. Du Toit E, Kruger J, Swiegers S, Van der Merwe M, Calitz F, Philane L, Joubert G: The profile analysis of attempted-suicide patients referred to Pelonomi Hospital for psychological evaluation and treatment from 1 May 2005 to 30 April 2006. S Afr J Psychiatry. 2008, 14 (1): 20-26.

    Google Scholar 

  50. Fleischmann A, Bertolote JM, De Leo D, Botega N, Phillips M, Sisask M, Vijayakumar L, Malakouti K, Schlebusch L, De Silva D: Characteristics of attempted suicides seen in emergency-care settings of general hospitals in eight low-and middle-income countries. Psychol Med. 2005, 35 (10): 1467-1474. 10.1017/S0033291705005416.

    PubMed  Google Scholar 

  51. Meel B: Determinants of suicide in the Transkei sub-region of South Africa. J Clin Forensic Med. 2003, 10 (2): 71-76. 10.1016/S1353-1131(03)00038-5.

    CAS  PubMed  Google Scholar 

  52. Tsegaye F, Abdella K, Ahmed E, Tadesse T, Bartolomeos K: Pattern of fatal injuries in Addis Ababa, Ethiopia. A one-year audit. East Cent Afr J Surg. 2010, 15 (2): 10-17.

    Google Scholar 

  53. Kizza D, Hjelmeland H, Kinyanda E, Knizek BL: Alcohol and suicide in postconflict Northern Uganda: a qualitative psychological autopsy study. Crisis. 2012, 33 (2): 95-10.1027/0227-5910/a000119.

    PubMed  Google Scholar 

  54. Joe S, Stein DJ, Seedat S, Herman A, Williams DR: Prevalence and correlates of non-fatal suicidal behaviour among South Africans. Br J Psychiatry. 2008, 192 (4): 310-311. 10.1192/bjp.bp.107.037697.

    PubMed  PubMed Central  Google Scholar 

  55. Kinyanda E, Hjelmeland H, Musisi S: Negative life events associated with deliberate self-harm in an African population in Uganda. Crisis. 2005, 26 (1): 4-11. 10.1027/0227-5910.26.1.4.

    CAS  PubMed  Google Scholar 

  56. Oladeji BD, Gureje O: Parental mental disorders and suicidal behavior in the Nigerian Survey of Mental Health and Well-Being. Arch Suicide Res. 2011, 15 (4): 372-383. 10.1080/13811118.2011.616151.

    PubMed  Google Scholar 

  57. Hjelmeland H, Knizek BL: Why we need qualitative research in suicidology. Suicide Life Threat Behav. 2010, 40 (1): 74-80. 10.1521/suli.2010.40.1.74.

    PubMed  Google Scholar 

  58. Hjelmeland H, Knizek BL: What Kind of Research Do We Need in Suicidology Today?. International Handbook of Suicide Prevention: Research, Policy and Practice. Edited by: O'Connor RC, Platt S, Gordon J. 2011, Chichester, UK: John Wiley & Sons, Ltd

    Google Scholar 

  59. Kizza D, Knizek BL, Kinyanda E, Hjelmeland H: Men in despair: a qualitative psychological autopsy study of suicide in Northern Uganda. Transcult Psychiatry. 2012, 49 (5): 696-717. 10.1177/1363461512459490.

    PubMed  Google Scholar 

  60. Kizza D, Knizek BL, Kinyanda E, Hjelmeland H: An escape from agony: a qualitative psychological autopsy study of women's suicide in a post-conflict Northern Uganda. Int J Qual Stud Health Well-being. 2012, 7: 18463-,

    Google Scholar 

  61. Akotia CS, Knizek BL, Kinyanda E, Hjelmeland H: “I have sinned”: Understanding the role of religion in the experiences of suicide attempters in Ghana. Mental Health Relig Cult. 2014, 17: 5-437-448

    Google Scholar 

  62. Phillips MR, Liu H, Zhang Y: Suicide and social change in China. Cult Med Psychiatry. 1999, 23 (1): 25-50. 10.1023/A:1005462530658.

    CAS  PubMed  Google Scholar 

  63. Phillips MR, Li X, Zhang Y: Suicide rates in China, 1995–99. Lancet. 2002, 359 (9309): 835-840. 10.1016/S0140-6736(02)07954-0.

    PubMed  Google Scholar 

  64. Gunnell D, Eddleston M, Phillips MR, Konradsen F: The global distribution of fatal pesticide self-poisoning: Systematic review. BMC Public Health. 2007, 7 (1): 357-10.1186/1471-2458-7-357.

    PubMed  PubMed Central  Google Scholar 

  65. Nock MK, Borges G, Bromet EJ, Alonso J, Angermeyer M, Beautrais A, Bruffaerts R, Chiu WT, de Girolamo G, Gluzman S: Cross-national prevalence and risk factors for suicidal ideation, plans and attempts. Br J Psychiatry. 2008, 192 (2): 98-105. 10.1192/bjp.bp.107.040113.

    PubMed  PubMed Central  Google Scholar 

  66. Burrows S, Laflamme L: Assessment of accuracy of suicide mortality surveillance data in South Africa. Crisis. 2007, 28 (2): 74-81. 10.1027/0227-5910.28.2.74.

    PubMed  Google Scholar 

  67. Beautrais AL: Suicide in Asia. Crisis. 2006, 27 (2): 55-57. 10.1027/0227-5910.27.2.55.

    CAS  PubMed  Google Scholar 

  68. Hendin H, Phillips MR, Vijayakumar L, Pirkis J, Wang H, Yip P, Wasserman D, Bertolote JM, Fleischmann A: Suicide and suicide prevention in Asia. Mental Health and Substance Abuse, World Health Organization. 2008, Suicide and suicide prevention in Asia. Mental Health and Substance Abuse, World Health Organization: Suicide and suicide prevention in Asia. Mental Health and Substance Abuse, World Health Organization

    Google Scholar 

  69. Schmidtke A, Bille Brahe U, DeLeo D, Kerkhof A, Bjerke T, Crepef P, Haring C, Hawton K, Lönnqvist J, Michel K: Attempted suicide in Europe: rates, trends and sociodemographic characteristics of suicide attempters during the period 1989–1992. Results of the WHO/EURO Multicentre Study on Parasuicide. Acta Psychiatr Scand. 1996, 93 (5): 327-338. 10.1111/j.1600-0447.1996.tb10656.x.

    CAS  PubMed  Google Scholar 

  70. Yip PS, Caine E, Yousuf S, Chang S-S, Wu KC-C, Chen Y-Y: Means restriction for suicide prevention. Lancet. 2012, 379 (9834): 2393-2399. 10.1016/S0140-6736(12)60521-2.

    PubMed  Google Scholar 

  71. Mann JJ, Apter A, Bertolote J, Beautrais A, Currier D, Haas A, Hegerl U, Lonnqvist J, Malone K, Marusic A: Suicide prevention strategies. JAMA. 2005, 294 (16): 2064-2074. 10.1001/jama.294.16.2064.

    CAS  PubMed  Google Scholar 

  72. Bertolote JM, Fleischmann A, Butchart A, Besbelli N: Suicide, suicide attempts and pesticides: a major hidden public health problem. Bull World Health Organ. 2006, 84 (4): 260-260.

    PubMed  PubMed Central  Google Scholar 

  73. Gunnell D, Fernando R, Hewagama M, Priyangika W, Konradsen F, Eddleston M: The impact of pesticide regulations on suicide in Sri Lanka. Int J Epidemiol. 2007, 36 (6): 1235-1242. 10.1093/ije/dym164.

    CAS  PubMed  PubMed Central  Google Scholar 

  74. Roberts DM, Karunarathna A, Buckley NA, Manuweera G, Sheriff M, Eddleston M: Influence of pesticide regulation on acute poisoning deaths in Sri Lanka. Bull World Health Organ. 2003, 81 (11): 789-798.

    PubMed  Google Scholar 

  75. Hawton K, Bergen H, Simkin S, Dodd S, Pocock P, Bernal W, Gunnell D, Kapur N: Long term effect of reduced pack sizes of paracetamol on poisoning deaths and liver transplant activity in England and Wales: interrupted time series analyses. BMJ. 2012, 346: f403-f403.

    Google Scholar 

Pre-publication history

Download references


We are grateful to Alexandra Fleischmann, Henrik Heitmann and Amrita Parekh at the World Health Organization for literature searching and paper retrieval and to the Global Burden of Disease Study 2010 and all its contributors.

B.M is funded by a grant from the Medical Research Council (grant reference MR/J012661/1).

S.B is a researcher at the Research Centre of the University of Montréal Hospital Centre and assistant professor at the University of Montréal.

H.H is Professor at the Norwegian University of Science and Technology.

D.G is a National Institute for Health Research (NIHR) Senior Investigator.

Author information

Authors and Affiliations


Corresponding author

Correspondence to Becky Mars.

Additional information

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

DG and BM contributed towards the conception of the study. BM helped to review and consolidate the literature, searched reference lists of eligible articles, assisted with the interpretation of the data and drafted the manuscript. SB, HH and DG assisted with the acquisition of relevant articles/data, participated in the interpretation of the data, assisted with the drafting of the manuscript and critically appraised the manuscript for important intellectual content. All authors read and approved the final manuscript.

Authors’ original submitted files for images

Below are the links to the authors’ original submitted files for images.

Authors’ original file for figure 1

Authors’ original file for figure 2

Rights and permissions

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Mars, B., Burrows, S., Hjelmeland, H. et al. Suicidal behaviour across the African continent: a review of the literature. BMC Public Health 14, 606 (2014).

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: