Épidémie du VIH chez les hommes travaillant dans les mines industrielles de Guinée : séroprévalence, facteurs de risque associés et tendance 2001–2007

Abstract

Background To estimate HIV prevalence, associated factors and trends from 2001 to 2007 among male miners in Guinea. Methods Two hundred and eighty-six male miners in 2001 and 579 in 2007 were tested for HIV and interviewed about their lifestyles and sexual practices. Investigations were conducted in the five mining companies operating in the country. A standard questionnaire was used for collecting data and SAS Windows 9.2 version (SAS Institute, Cary, North Carolina, USA) for statistical analysis. Results Median age was 45 years in 2001 and 39 years in 2007 ( P = 0.001). HIV prevalence was 4.5% (95% Confidence Interval [95% CI]: 2.1–7.0) in 2001 and 6.4% (95% CI: 4.4–8.4) in 2007. In multivariate analysis, HIV prevalence was associated with history of sexually transmitted infections (STIs) (Prevalence Ratio [PR] = 2.21; P = 0.03), and with paying for sex (PR = 6.01; P = 0.04), whereas it was significantly higher in divorced, separated or widowed men. HIV prevalence increased but not significantly between 2001 and 2007, whereas casual sex ( P = 0.03) and counseling activities against HIV ( P < 0.0007) decreased. Conclusion HIV prevalence is high in this population and, although not statistically significant, the increase observed between 2001 and 2007 is worrying in a context where the population of miners became younger over time. Prevention of HIV/AIDS has to be reinforced among miners in Guinea.