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Perceived problematic alcohol use in the family and adolescents’ stress-related complaints: examining the buffering role of the school’s degree of student focus as rated by its teachers

Abstract

Background

A non-negligible proportion of children grow up with problematic alcohol use in the family. Problematic familial drinking can be regarded as a stressor, and prior studies have consistently reported poorer mental health among adolescents who are exposed. However, it is also of relevance to identify modifiable protective factors which may buffer against stress-related ill-health in this group of adolescents. One context where such factors may be present is the school. The aim of this study is to examine the relationship between perceived problematic familial alcohol use and students’ stress-related complaints, and specifically to explore if the school’s degree of student focus can buffer against any such negative health consequences of problem drinking at home.

Methods

Data were drawn from four separate surveys, the Stockholm School Survey (SSS) and the Stockholm Teacher Survey (STS) conducted in 2014 and 2016 among 7,944 students (~ 15–16 years) and 2,024 teachers in 147 Stockholm senior-level school units. Perceived problematic familial alcohol use was measured by one item in the SSS. Stress-related complaints were captured by co-occurring somatic complaints and psychological distress, and reported by students in the SSS. The school’s student focus was measured by an index based on teachers’ ratings of four items in the STS. A set of covariates at the student and the school level were also included. Two-level binary logistic and linear regression models were performed.

Results

Perceived problematic familial alcohol use was linked with an increased likelihood of reporting co-occurring somatic complaints as well as psychological distress. Cross-level interactions revealed that the association between perceived problematic familial alcohol use and co-occurring somatic complaints was weaker among students attending schools with stronger teacher-rated student focus. Regarding psychological distress, the association was weaker for students attending schools with intermediate or strong teacher-rated student focus, compared with those attending schools with weaker teacher-rated student focus.

Conclusions

The findings provide support for the assumption that favourable conditions in schools can buffer against negative health consequences of problematic conditions in the family, thus serving a compensatory role.

Peer Review reports

Background

An earlier (work in progress) version of the study was presented at the European Public Health Conference in 2021, and the conference abstract was accordingly published in the European Journal of Public Health [1]. In the first version that was presented, only one outcome was analysed (co-occurring somatic complaints), whereas the full manuscript includes analyses of both co-occurring somatic complaints and psychological distress.

A non-negligible proportion of children and adolescents are exposed to problematic alcohol use in the family. Studies from the U.S., Denmark, and Sweden have shown that between 4 and 23% have parents with problematic alcohol use, depending on how alcohol problems were measured [2].

Problematic familial drinking can be regarded as a stressor, with potential effects on stress-related ill-health for those who are exposed, not least for the children. Indeed, prior studies have shown problematic parental alcohol use to be associated with mental health problems in the offspring in terms of internalising problems such as emotional symptoms and psychosomatic complaints [3,4,5,6,7,8,9], as well as mental and behavioural disorders [10] including self-injury and suicidal behaviour [11,12,13]. Although some earlier studies have measured problematic parental alcohol use through, e.g., official register information [10], military conscription records [13] or by parental self-reports [7], much research has focused on the adolescents’ own perceptions of problematic parental alcohol use captured by e.g., the Children of Alcoholics Screening Test (CAST) scale [5, 6, 9] or by single items [3, 4, 8, 12].

Problematic parental alcohol use may lead to stress in the children due to negative emotions such as fear, shame and guilt [14,15,16], impaired relations with parents [3] and the need to take responsibility or parenting roles at an early age [15]. However, as shown by the vast literature on Adverse Childhood Experiences (ACEs), parental problematic alcohol use often coincides with other aspects of household dysfunction, e.g., violence, abuse, neglect, and incarceration [17,18,19], which may cause, moderate or mediate the associations between parental problematic alcohol use and adverse outcomes.

Two systematic reviews have provided overviews of protective mental health factors in children of parents with alcohol-related disorders. Park & Schepp [20] identified vulnerability and resilience factors at four levels: the individual; parental; familial; and social level. Wlodarczyk et al. [21] classified protective factors into three domains, which they labelled as child-related factors; family and parental factors; and environmental factors. Social support is a key factor that was listed both at the social level by Park & Schepp [20] and in the environmental domain by Wlodarczyk et al. [21]. This may include social support from various sources, e.g., grandparents, parents of friends, and teachers as well [15, 20, 21]. Indeed, the presence of stable adult figures outside the closest family has been highlighted as an important protective factor [15]. Overall, however, it has been highlighted that protective mental health factors in children of parents with alcohol-related disorders is an understudied area [21] and hence there is a need for further inquiry. Specifically, studies of modifiable protective factors are highly relevant.

The school constitutes a setting where children and young people spend a considerable amount of their time. It is also an arena which provides opportunities for modifiable protective factors, including access to supportive relations with teachers. Strong student–teacher relationships are central to so-called “effective schools”. Research into the scholarship of effective schools has shown that there are certain characteristics of schools that are linked with more favourable learning and behavioural outcomes among students, irrespective of the students’ own social background and the school’s student body composition [22]. Such features include high expectations of the students, well formulated and constructive feedback, strong relations between teachers and students as well as between the parents and the school, clear and transparent goals, and an orderly environment [22,23,24]. These features are reflected by the concept school ethos, referring to the norms, values, attitudes and behaviours permeating the social interaction patterns at a school [25]. In an article based on the same data that is used in the current study, we analysed the link between problematic familial alcohol use and heavy episodic drinking among senior-level students and investigated the buffering role of the school’s degree of teacher-rated student focus, i.e., one specific aspect of school ethos which reflects strong and positive teacher-student relationships [26]. Building upon these findings, a related study focused on the association between perceived problematic familial alcohol use and heavy episodic drinking among upper secondary students and examined the buffering role of several dimensions of teacher-rated school ethos [27]. Both these studies demonstrated an association between perceived problematic familial alcohol use and heavy episodic drinking among students, and that this relationship was weaker among students attending schools with higher levels of teacher-rated school ethos, suggesting a compensatory effect [26, 27].

Based on the literature on protective factors in children of parents with problematic alcohol use [15, 20, 21] which highlights the importance of social support from adults outside the closest family, it seems possible that a strong student focus at a school may be protective against certain stress-related complaints with origin in their family situation. This assumption is also in line with the stress-buffering model, which postulates that perceived or received social resources have a buffering role in the association between a stressor and stress-related outcomes [28].

Focusing on problematic drinking in the family as a stressor, the aim of the current study is to examine the association between perceived problematic familial alcohol use and students’ stress-related complaints, and specifically to explore if the school’s level of student focus can serve as a buffer in this relationship.

Methods

Data and participants

The data was drawn from four cross-sectional surveys performed in 2014 and in 2016 among ninth grade students and senior-level teachers in the same schools; the Stockholm School Survey (SSS) and the Stockholm Teacher Survey (STS), which were combined. Administrative register information on schools from the Swedish National Agency for Education has also been linked to the data.

The SSS is performed biennually by Stockholm Municipality among students in grade 9 of compulsory school (~ 15–16 years) and in grade 2 of upper secondary school (~ 17–18 years) in all public schools and in many of the independent schools in Stockholm. Students complete the questionnaires in the classroom with paper and pencil. The response rate for the 2014 and the 2016 surveys has been estimated to 78% [29] (p. 17, Table 2). The number of grade 9 students who participated was 5,245 in 2014 and 6,381 in 2016 [29] (p. 18).

The STS was conducted among teachers in 2014 and in 2016 as part of a research project at Stockholm University. Teachers in the same schools that participated in the SSS were invited to take part in a web survey about conditions in the school, with the purpose of aggregating this information to the school level and linking it to the student level data from the SSS. In 2014, the STS was performed among teachers in the senior-level schools that participated in the SSS, and in 2016 among teachers in both senior-level and upper secondary schools that took part in the SSS. School-level measures of teacher ratings of, e.g., school ethos, consensus and cooperation among teachers, and teachers’ time use, were formed by constructing indices and then calculating the mean value of each school. These measures were then linked to the student level data from the SSS. The response rate among senior-level teachers was 54% in both 2014 and in 2016 [29] (p. 17, Table 2). The number of senior-level teachers who participated was 1,286 in 2014 and 1,247 in 2016 [29] (p. 19).

The present study was based on data from the SSS collected among students in grade 9, the STS collected among senior-level teachers, and official register information on schools from the Swedish National Agency for Education. Data from 2014 and 2016 were pooled in order to increase the sample size. The number of ninth grade students which could be linked to teacher-level information was 10,757 [29] (p. 19). After exclusion of students with missing information on any of the study variables (n = 2,813), the study sample included responses from 7,944 students and 2,024 teachers distributed across 147 senior-level school units, i.e. 74% of the participating grade 9 students. More information on the data material is provided elsewhere [29].

Ethics

The Regional Ethical Review Board of Stockholm has concluded that data from the Stockholm School Survey are not subject to consideration for ethical approval since the questionnaires are completed anonymously without any information on personal identification (ref. no. 2010/241–31/5). The Regional Ethical Review Board of Stockholm has provided ethical approval for the Stockholm Teacher Survey (ref. no. 2013/2188–31/5; 2015/1827–31/5). In accordance with the ethical permission, informed consent was obtained from those who participated. All methods were carried out in accordance with relevant guidelines and regulations. During the data processing for the current study, the data material was treated with caution and all analyses were performed and presented at the group level, protecting the confidentiality of the participants.

Measures

Stress-related complaints were captured by two measures: co-occurring somatic complaints and psychological distress.

Co-occurring somatic complaints were constructed from two questions in the SSS about headache and stomach ache, respectively: “How often have you had headaches this school year?” and “How often this school year have you had an upset stomach (e.g., stomach ache, stomach cramps, upset stomach, nausea, wind, constipation or diarrhoea)?” The response categories were “Never”, “About once a term”, “About once a month”, “About once a week” and “Several times a week”. Students who marked that they had weekly co-occurring complaints, i.e., both headache and stomach ache about once a week or more often, were classified as having co-occurring somatic complaints. The co-occurrence of headache and stomach ache can be seen as a marker of stressful conditions [30]. The same measure has been used in prior studies [31, 32].

Psychological distress was based on three items in the SSS: “Do you feel sad and depressed without knowing why?”, “Do you ever feel frightened without knowing why?”, and “How often do you feel it is really good to be alive?”. The response categories were: “Seldom”, “Occasionally”, “Sometimes”, “Pretty often”, and “Very often”. Each item was coded 1–5 (the item on enjoyment of life was reversely coded). The three items had acceptable internal consistency (Cronbach’s α = 0.66). The values of each item were added to an index where higher values represented higher levels of psychological distress. The measure has been used previously [33].

Perceived problematic familial alcohol use was captured by one question in the SSS: “Do you think someone in your family drinks too much alcohol?” The response categories were “Yes”, “No”, and “Don’t know”. Students who replied “Don’t know” were coded as missing. The same question has been used in earlier studies [8, 26, 27].

Teacher-rated student focus was captured by four items in the STS: “At this school the teachers make an effort to provide positive feedback about students’ performance”, “Teachers have high expectations of student performance”, “Teachers at this school take their time with students even if they want to discuss something other than schoolwork”, and “At this school the students are treated with respect”. Response categories were on a five point-scale from “Strongly agree” to “Strongly disagree”. The items had high internal consistency (Cronbach’s α = 0.75). Values for all items were summed to an index with the possible range 4–20, with higher values indicating higher teacher ratings of the school’s student focus. In order to examine potentially non-linear associations, we constructed three categories of about equal size in order to distinguish students in schools with a relatively weak, intermediate, and strong student focus. The measure has been used in previous studies [26, 27, 34]. Student focus is a subdimension of the broader concept of school ethos. A confirmatory factor analysis of a measure of school ethos based on 12 items, including the four items on student focus, proved to have good model fit (CFI = 0.93; TLI = 0.92; RMSEA = 0.09) [25, 33].

A set of covariates that previously have been shown to be associated with both perceived problematic familial alcohol use and adolescent health [8] were also included to account for possible confounding. Accordingly, at the student level, we controlled for gender, family structure, parental university education, parental unemployment, and migration background, based on student reported information from the SSS. Furthermore, we included two control variables at the school level which may be correlated with the main variables of interest: the school’s segregation profile, with schools classified into “privileged”, “typical”, “deprived” and “deprived immigrant” school clusters based on Latent Class Analysis (LCA) (for a detailed description of the LCA and the measure, see [25, 29]); and the school’s student–teacher ratio (i.e., the number of students per teacher), based on official registry information from the Swedish National Agency for Education.

Statistical method

To scrutinise the associations between perceived familial alcohol use and adolescent stress-related complaints by schools’ degree of student focus, we first carried out cross-tabulations with chi-square tests (for somatic complaints) and ANOVAs (for psychological distress). Next, we conducted two-level binary logistic regression models of somatic complaints using the melogit command in Stata, presenting odds ratios (OR) with 95% Confidence Intervals (CI), and two-level linear regression models of psychological distress using the xtmixed command, presenting unstandardised coefficients (b) with 95% Confidence Intervals (CI). For all models, the Intraclass Correlation (ICC) is reported, which indicates the amount of variation that can be attributed to the higher unit level, in this case the school level. All analyses were performed in Stata, version 17 [35].

Results

Descriptive statistics of the study sample are presented in Table 1. In the data, 11.8% of the students reported co-occurring somatic complaints and 11.1% reported perceived problematic familial alcohol use. The study sample was evenly distributed by gender. About two thirds lived in two-parent households and one third in other family constellations. In the study sample, 59.2% had at least one parent with university education and 5.5% had at least one parent who was unemployed. With regards to migration background, 8.0% had lived in Sweden for less than ten years. The mean value of psychological distress was 6.38. At the school level, 18.1% of the students attended schools classified as “privileged”, 56.7% in “typical” schools, 11.6% in “deprived” schools and 13.7% in “deprived immigrant” schools. Teacher-rated student focus was classified into three categories of about equal size. The mean value of student–teacher ratio was 14.2, with a range between 8.7 and 23.7. Descriptive statistics of the full sample, including also cases with missing values, is provided in the Supplementary Information (Table S1). The distributions in Table 1 and in Table S1 do not indicate any substantial differences between the study sample and the full sample. Distributions of perceived parental alcohol use, co-occurring somatic complaints, and psychological distress by the student-level covariates are displayed in Table S2.

Table 1 Descriptives. n = 7944 students in 147 senior-level school units

Table 2 presents proportions of students reporting somatic complaints and mean levels of psychological distress by perceived problematic familial alcohol use, among all students and stratified by the school’s level of teacher-rated student focus. Chi-square tests and ANOVAs were performed to assess differences between groups.

Table 2 Proportions of students reporting co-occurring somatic complaints and mean values of psychological distress, by perceived problematic familial alcohol use, in the total sample and stratified by the school’s level of teacher-rated student focus. Differences between groups examined with χ2 tests and ANOVAs

In the total study sample, co-occurring somatic complaints were reported by 10.9% of the students who had answered that there was no problematic familial alcohol use, whereas the share among students who had reported perceived problematic familial alcohol use was 19.0%. The difference was statistically significant. The analyses stratified by the school’s level of teacher-rated student focus showed that co-occurring somatic complaints were overall more prevalent among students who had reported perceived problematic familial alcohol use compared with those who had not, with statistically significant associations. However, the relative difference between the two categories varied by the level of the school’s student focus in a gradient manner. The relative difference was most substantive among students attending schools with a relatively weak student focus, where adolescents who perceived problematic familial alcohol use were almost twice as likely to report co-occurring somatic complaints (24.8/12.6 = 1.97) compared to students who did not report any such problems. Among students attending schools with an intermediate level of teacher-rated student focus, the elevated risk of co-occurring somatic complaints among those with perceived problematic familial alcohol use was somewhat lower (17.6/10.5 = 1.68), and among students attending schools with a strong student focus, the relative difference was even smaller (13.9/9.7 = 1.43).

In the total study sample, the mean value of psychological distress was 6.23 among the students who did not report perceived problematic familial alcohol use, and by 7.58 among those who did. The difference was statistically significant. The relative difference in psychological distress between those who did and those who did not report perceived problematic familial alcohol use varied by the level of the school’s degree of student focus, albeit not in a gradient manner. The relative difference in mean values of psychological distress was largest in schools with a relatively weak student focus (8.00/6.30 = 1.27). The relative difference was smallest among students in schools with an intermediate degree of student focus (7.28/6.24 = 1.17), followed by students in schools with a strong degree of student focus (7.47/6.14 = 1.22).

To further examine the associations between perceived problematic familial alcohol use and stress-related complaints, we performed a series of two-level binary logistic regression analyses of co-occurring somatic complaints (with results presented in Table 3) and a series of two-level linear regression analyses of psychological distress (with results presented in Table 4).

Table 3 Odds ratios (OR) and 95% confidence intervals (95% CI) from two-level binary logistic regressions of co-occurring somatic complaints. n = 7944 students in 147 senior-level school units. All models are adjusted for study year
Table 4 Unstandardised coefficients (b) and 95% confidence intervals (95% CI) from two-level linear regressions of psychological distress. n = 7944 students in 147 senior-level school units. All models are adjusted for study year

The first model in Table 3, including only student-level variables, shows that perceived problematic familial alcohol use was clearly associated with an increased likelihood of reporting co-occurring complaints (OR 1.74, 95% CI 1.43, 2.11). Furthermore, the model shows that girls were more likely than boys to report such complaints (OR 3.17, 95% CI 2.71, 3.70). Students who did not live in two-parent households also had a higher likelihood of reporting co-occurring somatic complaints (OR 1.19, 95% CI 1.02, 1.38). There was no statistically significant association between having university-educated parents and co-occurring somatic complaints (OR 0.91, 95% CI 0.79, 1.06). However, students with at least one unemployed parent were more likely to report co-occurring somatic complaints (OR 1.57, 95% CI 1.21, 2.05). Finally, migration background was not associated with the likelihood of reporting co-occurring somatic complaints (OR 1.04, 95% CI 0.80, 1.34). Model 2 added a school-level measure of teacher-rated student focus at the respective schools, which showed an inverse, graded association with co-occurring somatic complaints, (intermediate student focus: OR 0.81, 95% CI 0.66, 0.98, p = 0.034; strong student focus: OR 0.70, 95% CI 0.57, 0.86, p = 0.001). In Model 3, the segregation profile and student–teacher ratio of the school were included along with the full set of student-level variables. Vis-à-vis students in “privileged” schools, those in “typical” and in “deprived immigrant” schools did not differ in their reports of co-occurring somatic complaints. However, students attending “deprived” schools had a higher likelihood of reporting co-occurring somatic complaints compared with students in “privileged” schools. No statistically significant association was seen for the school’s student–teacher ratio and co-occurring somatic complaints at the student level. Model 4 included all student- and school-level variables. The association between teacher-rated student focus and students’ likelihood of reporting co-occurring somatic remained statistically significant in this model. Finally, we tested for the cross-level interaction between teacher-rated student focus and perceived problematic familial alcohol use to the fully adjusted model. The estimate for strong student focus was negative and very close to statistically significant (OR 0.61, 95% CI 0.37, 1.00, p = 0.051), indicating that the association between perceived parental alcohol problems on psychological distress was weaker in schools with a strong level of student focus. Analyses of co-occurring somatic complaints stratified by gender are displayed in the Supplementary Material, Table S3 (boys) and Table S4 (girls). The results show that the cross-level interaction was driven by boys.

Table 4 displays results from the analyses of psychological distress. Model 1 shows that perceived problematic familial alcohol use was clearly associated with higher levels of psychological distress (b = 1.12, 95% CI 0.94, 1.29). Psychological distress was higher in girls than boys (b = 1.80, 95% CI 1.69, 1.91). Higher levels of psychological distress were observed among students who did not live in two-parent households (b = 0.33, 95% CI 0.21, 0.45), who had at least one unemployed parent (b = 0.43, 95% CI 0.19, 0.67), and who had lived less than 10 years in Sweden (b = 0.49, 95% CI 0.28, 0.69). Conversely, having a parent with university education was associated with lower levels of psychological distress (b = -0.19, 95% CI -0.30, -0.08). Model 2 added teacher-rated student focus, which did not show any statistically significant association with students’ psychological distress. In Model 3, the segregation profile and student–teacher ratio of the school were included along with the student level variables. Compared with students in “privileged” schools, the level of psychological distress was higher among students in “typical” (b = 0.23, 95% CI 0.05, 0.42), in “deprived” (b = 0.36, 95% CI 0.10, 0.61), and in “deprived immigrant” schools (b = 0.33, 95% CI 0.05, 0.61). In Model 4, mutually adjusting for the full set of student and school level variables, all associations remained similar to the previous models. Finally, we added a cross-level interaction between teacher-rated student focus and perceived problematic familial alcohol use to the fully adjusted model. The estimates were negative and statistically significant, indicating that the association between perceived parental alcohol problems and psychological distress was weaker in schools with an intermediate (b = -0.62, 95% CI -1.03, -0.20, p = 0.003) and a strong level of student focus (b = -0.48, 95% CI -0.92, -0.04, p = 0.033), compared with schools with a weak student focus. Analyses of psychological distress stratified by gender are displayed in the Supplementary Material, Table S5 (boys) and Table S6 (girls). Similar to the analyses of co-occurring somatic complaints, these results also show that the cross-level interaction was largely driven by boys.

To further illustrate the difference in the association between perceived problematic familial alcohol use and co-occurring somatic complaints among students in schools with different levels of teacher-rated student focus, we performed three fully adjusted multilevel models stratified by the school’s level of student focus (with the sample split into the same three categories as in the stratified analyses reported in Table 2). The results, presented in Fig. 1, show that the association between perceived problematic familial alcohol use and co-occurring somatic complaints was strongest for students in schools with a relatively weak student focus (OR 2.24, 95% CI 1.65, 3.05, p < 0.001), somewhat less pronounced for those attending schools with an intermediate student focus (OR 1.70, 95% CI 1.22, 2.36, p < 0.01), and even weaker and non-significant for students attending schools with a relatively strong student focus (OR 1.27, 95% CI 0.85, 1.89, p = 0.244).

Fig. 1
figure 1

Odds ratios (OR) and 95% confidence intervals (95% CI) displaying the association between perceived problematic familial alcohol use and adolescents’ co-occurring somatic complaints, stratified by the school’s level of teacher-rated student focus (reference category = no perceived problematic familial alcohol use)

Finally, we also performed three sets of fully adjusted multilevel analyses of the association between perceived problematic familial alcohol use and psychological distress, stratified by the school’s level of student focus. The results are displayed in Fig. 2. The graphs show that the coefficient of perceived problematic familial alcohol use was largest in the analyses of students in schools with a relatively weak student focus (b = 1.52, 95% CI 1.21, 1.83, p < 0.001), and smaller in the analyses of students in schools with an intermediate (b = 0.87, 95% CI 0.58, 1.15, p < 0.001) and a strong student focus (b = 0.99, 95% CI 0.67, 1.31, p < 0.001).

Fig. 2
figure 2

Unstandardised coefficients (b) and 95% confidence intervals (95% CI) displaying the association between perceived problematic familial alcohol use and adolescents’ psychological distress, stratified by the school’s level of teacher-rated student focus (reference category = no perceived problematic familial alcohol use)

Discussion

This study examined the relationship between perceived problematic familial alcohol use and adolescents’ stress-related complaints, and the buffering role of the school’s student focus in this association.

The results showed that perceived problematic familial alcohol use was clearly linked with a higher likelihood of reporting co-occurring somatic complaints and reporting higher levels of psychological distress among students. These findings reflect those from earlier studies which have shown problematic drinking among parents to be associated with a range of adverse mental health outcomes [3,4,5,6,7,8,9,10,11,12,13]. Overall, these studies indicate that perceived problematic familial alcohol use is a severe stressor. Possible mechanisms in the association between perceived problematic familial alcohol use and stress-related complaints include, e.g., feelings of fear, stigma, shame, and guilt [14,15,16], neglectful, inconsistent and unpredictable parenting [15, 16], poor parent–child relationships [3, 18, 20], and parentification, i.e., a reversal of the responsibility roles in the family [15, 16, 36, 37]. Another possible mechanism is that adolescents with perceived problematic familial alcohol use are more inclined to drink alcohol themselves [38], partly as a way to cope with the stress [16]. Excessive drinking is, in turn, associated with poorer mental health [39]. Additionally, living with a parent with problematic alcohol use may include difficulties with friendships, social isolation, and development of peer relationships which may include antisocial activities and risky behaviours [15]. It should however be stressed that parental problematic alcohol use often co-occurs with other adverse conditions in the family [17,18,19]. For instance, children exposed to parental problematic alcohol use are also more likely to experience or witness violence, neglect, and abuse [15]. In the current study, we did not adjust for other adverse childhood experiences, and hence we cannot exclude the possibility that there are other aspects of household dysfunction which account for the association between problematic familial alcohol use and adolescents’ stress-related complaints.

The school’s degree of teacher-rated student focus was negatively associated with co-occurring somatic complaints, but not with psychological distress when the school’s segregation profile was adjusted for. Furthermore, our analyses showed a buffering effect of teachers’ ratings of the school’s student focus on the association between perceived problematic familial alcohol use and co-occurring somatic complaints: A cross-level interaction revealed that the association between perceived problematic familial alcohol use and co-occurring somatic complaints was weaker in schools with a strong student focus. Regarding psychological distress, the results showed a buffering effect of both intermediate and strong student focus. These results are in line with prior studies based on the same data as the current one, which showed that the school’s degree of student focus served as a buffer in the association between perceived problematic alcohol use in the family and students’ own alcohol use [26, 27]. The findings also align with previous research which emphasises social support resources outside the family as important protective factors for children of parents with problematic alcohol use [15, 20, 21].

The moderating effect of the school’s degree of student focus on the association between perceived problematic familial alcohol used and adolescent stress-related complaints may be interpreted in light of the scholarship of effective schools. This field of research presents that certain characteristics of schools such as high expectations, clear goals, strong teacher-student and parent-school relations, and an orderly environment, can induce more favourable outcomes in their students in terms of higher academic achievement [22, 25], but also fewer behavioural problems [23, 34] and less psychological distress [33]. More specifically, the school’s level of student focus, which was at the heart of the current study, captures the degree of strong and positive relations between teachers and students at a school. An interpretation of the buffering role of student focus in the association between problematic familial drinking and co-occurring somatic complaints among students is that teachers act as important adults who, through their presence and support, contribute to making the situation of students with problematic conditions in the home more manageable, thereby inducing resilience. In a systematic review of qualitative studies of children of substance users, Muir et al. [16] reported that the school was often brought up as a safe and supportive place, but was also associated with risks. Young people acknowledged the importance of achieving well in school, but due to their home situation they often felt worried, had to struggle with homework, and sometimes also had to face consequences for unacceptable behaviour, which in turn led to a reduced access to social and professional support. As highlighted by Muir et al. [16]: “Young people reported wanting school staff to recognize the impacts of parental substance use on children, to improve referral and early access to support” (p. 11). One interpretation of our findings is that teachers in schools characterised by a strong student focus have better possibilities to recognise and support students with problematic situations in the home.

Additional analyses in the current study showed that the moderating effect of teacher-rated student focus was driven by boys. This result aligns with findings from previous studies which showed that girls were less affected by parental problematic alcohol use in the short term, and that individual-level characteristics were more important for the resilience of females but that external support was more important for males [15].

However, it should be acknowledged that the total amount of variation in stress-related complaints that could be attributed to the school level was minor, as indicated by the ICCs. In other words, most of the variation in stress-related complaints is due to factors at the individual student level. Hence, in order to tackle stress-related complaints in more general terms, improving the school’s degree of student focus is not sufficient.

The statistically significant associations between several of the covariates and stress-related complaints deserve to be mentioned. Girls were more likely to report co-occurring somatic complaints and psychological distress, reflecting prior research (e.g., [30, 40]). In addition, not living with two original parents and parental unemployment were linked with a higher likelihood of both studied outcomes. Students with no university-educated parent and those who had lived in Sweden less than 10 years were more likely to report psychological distress, whereas no statistically significant differences were seen for co-occurring somatic complaints. In all, the findings point at clear social inequalities in stress-related complaints. Although this was not the focus of the current study, scrutinising potential explanations behind such inequalities is a relevant task for future research.

The main strength of the study is that the data material was based on information collected among both teachers and students, as well as linked register information, thus reducing the risk of common methods variance. In particular, it is a benefit that the schools’ degree of student-focus and stress-related complaints were assessed by teachers and students, respectively, since we thereby minimise the possibility that negative affectivity influences the results [41]. Nonetheless, there are also limitations. It should be acknowledged that even though the measures have been used in previous studies, they have not all been formally validated. With regards to the measure of perceived problematic familial drinking, it should also be emphasised that this is subjective from the students’ point of view. The variable may reflect adolescents’ awareness of familial drinking problems (rather than the actual occurrence) but also their inclination to disclose information about sensitive experiences (for a discussion, see [8]). Additionally, the measure is rather crude since it is based on only one question, and it does not specify which persons in the family that have problematic alcohol use. Another limitation that should be acknowledged is the non-response. With regards to external non-response, it is possible students with problematic situations in the home and/or who suffer from mental health problems were less likely to be at school at the day of the survey, and may hence be underrepresented in the data. There was also a relatively high degree of internal non-response in the survey, i.e., students who participated but who skipped certain questions. A comparison of the distribution of the variables in the full sample vs. our study sample did however not show any substantial differences. Further, the cross-sectional nature of the data limits possibilities of causal interpretations. Relatedly, although we controlled for a range of sociodemographic characteristics at the student level and for school segregation profile and student–teacher ratio at the school level, it is possible that we were not able to fully account for the selection of students with certain features into certain schools, meaning that there may be unmeasured characteristics that could affect the associations. Finally, it should be mentioned that the study was conducted among senior-level schools in Stockholm, Sweden. To be able to generalise the findings, studies of other age groups and other national or educational settings are needed to corroborate the results. However, the fact that the study was conducted in this setting also makes a contribution to the research field. The systematic review by Wlodarczyk et al. [21] included 11 studies of protective mental health factors in children and parents with substance use disorders, of which 10 were conducted in the US and one in Israel. Accordingly, studies conducted in other contexts are relevant. Future studies could also benefit from considering other aspects of the school context as well as other types of family stressors when examining the potentially buffering role of the school for students’ stress-related outcomes.

Conclusion

The results of the current study provide support for the assumption that schools with an intermediate or strong student focus can buffer against young people’s exposure to problematic conditions in the family, thereby serving a compensatory role. These results, taken together with our previous studies, indicate that strengthening schools’ ability to operate in accordance with the principles of effective schools may benefit students who experience stressors in their family life. Specifically, providing teachers with sufficient time and resources for creating and maintaining strong relations with their students is a task that should be given adequate attention from policy-makers.

Availability of data and materials

The data that support the findings of this study are available from Stockholm Municipality (the Stockholm School Survey) and the Department of Public Health Sciences, Stockholm University (the Stockholm Teacher Survey) but restrictions apply to the availability of these data, which were used under license for the current study, and so are not publicly available. Data are however available from the corresponding authors upon reasonable request (contact Professor Bitte Modin: bitte.modin@su.se) and with permission of Stockholm Municipality (e-mail: stockholmsenkaten@stockholm.se) and the Department of Public Health Sciences, Stockholm University.

Abbreviations

95% CI:

95% Confidence Interval

ICC:

Intraclass Correlation

OR:

Odds Ratio

SSS:

Stockholm School Survey

STS:

Stockholm Teacher Survey

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Acknowledgements

We are grateful to the students and the teachers who participated in the data collections. We are also grateful to the Stockholm Municipality for giving us access to data from the Stockholm School Survey.

Dual publication

An earlier (work in progress) version of the study was presented at the European Public Health Conference in 2021, and the conference abstract was accordingly published in the European Journal of Public Health [1]. In the first version of the study that was presented, only one outcome was analysed (co-occurring somatic complaints), whereas the full manuscript includes analyses of both co-occurring somatic complaints and psychological distress.

Funding

The study was funded by Systembolagets Alkoholforskningsråd (2019–0012; 2020–0047). The funders had no role in the study design, the collection, analysis or interpretation of the data, nor in the writing of the manuscript. Open access funding provided by Stockholm University.

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Authors and Affiliations

Authors

Contributions

All authors (SBL, CM, GO, JW and BM) contributed to the conceptualisation and the design of the study. The STS data were collected in a research project headed by BM. SBL performed the statistical analyses and drafted a first version of the manuscript. All authors (CM, GO, JW and BM) critically revised drafts of the paper, and read and approved of the final manuscript.

Corresponding author

Correspondence to Sara Brolin Låftman.

Ethics declarations

Ethics approval and consent to participate

The Stockholm School Survey (SSS) contains no information on personal identification and is completed anonymously by the students. According to a decision by the Regional Ethical Review Board of Stockholm (ref. no. 2010/241–31/5), analyses of data from the SSS are not subject to consideration for ethical approval. Informed consent was obtained from the students who participated. Due to the procedure of anonymous completion of the questionnaire, active written or oral consent was not applicable. According to the Swedish Ethical Review Act (SFS 2003:460), parental consent is not required for adolescents aged 15 or older if they realise what the research means for them.

The collection and analyses of the Stockholm Teacher Survey (STS) have been approved of by the Regional Ethical Review Board of Stockholm (ref. no. 2013/2188–31/5; 2015/1827–31/5). In accordance with the ethical permission, informed consent was obtained from those who participated.

All methods were carried out in accordance with relevant guidelines and regulations.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

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Låftman, S.B., Magnusson, C., Olsson, G. et al. Perceived problematic alcohol use in the family and adolescents’ stress-related complaints: examining the buffering role of the school’s degree of student focus as rated by its teachers. BMC Public Health 23, 1754 (2023). https://doi.org/10.1186/s12889-023-16505-x

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