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Table 1 Sociodemographics, HIV prevalence and sexual risk behaviors among MSM 2007–2010

From: Rising HIV prevalence among men who have sex with men in Nigeria: a trend analysis

Characteristics 2007 (n = 897) 95% CI 2010 (n = 1545) 95% CI 2014 (n = 3611) 95% CI p value
% (n) % (n) % (n)
HIV prevalence 13.5 (109) 11.3–16.0 17.2 (222) 15.2–19.4 22.9 (711) 21.5–24.4 < 0.0001
Age (yrs)
 16–19 13.2 (116) 11.1–15.6 13.8 (213) 12.2–15.6 20.9 (756) 19.6–22.2  
 20–24 60.5 (532) 57.2–63.7 39.6 (612) 37.2–42.1 45.9 (1658) 44.3–47.5  
  ≥ 25 26.3 (231) 23.5–29.3 46.6 (720) 41.1–49.1 33.2 (1197) 31.6–34.7 < 0.0001
Ever married 3.9 (34) 2.8–5.4 12.3 (189) 10.7–14.0 6.9 (247) 6.1–7.7 0.596
Educational Level
 None 2.1 (18) 1.3–3.3 3.7 (57) 2.9–4.8 3.1 (112) 2.9–3.7  
 Primary 19.2 (168) 16.7–22.0 20.0 (309) 18.1–22.1 13.9 (500) 12.8–15.0  
 Secondary 63.3 (553) 60.0–66.4 50.3 (777) 47.8–52.8 55.4 (2000) 53.8–57.0  
 Tertiary 15.5 (135) 13.2–18.0 26.0 (402) 23.9–28.3 27.7 (999) 26.2–29.2 < 0.0001
§Sexual partners in past 6 months
 Median No. of insertive anal sex partners (IQR) 2 (1–4)   2 (0–4)   2 (0–3)   0.0001
 Median No. of receptive anal sex partners (IQR) 2 (1–4)   1 (0–3)   1 (0–3)   0.0001
 Median No. of partners who paid for sex (IQR) 0 (1–4)   0 (0–2)   0 (0–1)   0.0001
 Median No. of non commercial sex partners (IQR) 3 (1–5)   1 (0–3)   1 (1–1)   0.0001
 Had female sex partner 15.2 (134) 13.0–17.8 52.2 (785) 49.7–54.7 72.4 (2537) 70.9–73.8 < 0.0001
 Engaged in transactional sex 32.7 (276) 29.6–35.9 38.8 (555) 36.3–41.3 33.2 (1130) 31.6–34.8 0.161
Consistent condom use during sex in the past 6 month
 Consistent condom use when selling sex 35.0 (42) 27.0–44.0 52.1 (96) 44.9–59.3 78.6 (265) 73.9–82.7 < 0.0001
 Consistent condom use when buying sex 35.2 (95) 29.7–41.1 34.2 (176) 30.2–38.4 61.3 (669) 58.4–64.2 < 0.0001
 Consistent condom use with non-commercial partners 32.2 (236) 28.9–35.6 34.9 (320) 31.8–38.0 50.8 (1406) 48.9–52.6 < 0.0001
Sexual position in past 6 months
 Engaged in receptive sex only 20.5 (179) 18.0–23.3 27.7 (423) 25.5–30.0 23.8 (852) 32.1–35.2  
 Engaged in insertive sex only 24.4 (213) 21.7–27.4 38.4 (586) 36.0–40.9 33.7 (1206) 32.1–35.2  
 Engaged in both insertive and receptive sex 55.1 (480) 51.7–58.3 33.9 (517) 31.5–36.3 42.6 (1525) 41.0–44.2 0.002
HIV risk and exposure to interventions
 Ever tested for HIV 34.0 (299) 31.0–37.2 58.6 (777) 55.9–61.2 64.6 (2312) 63.0–66.2 < 0.0001
 Tested for HIV within 1 years of survey 72.9 (218) 67.6–77.7 77.1 (533) 73.9–80.1 78.9 (2327) 77.2–80.6 0.019
 Feels at risk to HIV 32.3 (278) 29.2–35.4 27.8 (322) 25.3–30.4 27.6 (990) 26.2–29.1 0.055
 Experienced an STI in the past 6 months 6.8 (60) 5.3–8.7 15.0 (232) 13.3–16.9 18.6 (670) 17.3–19.9 0.039
  1. §Sexual position as defined by the sexual position (insertive, receptive or both) practiced by the respondent. p values derived from Cochran-Armitage Chi-square trend test
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