Document 2721 DOCN M94A2721 TI HIV-1 incidence in adults and risk factors for seroconversion in a rural population in Uganda: 3 years of follow-up. DT 9412 AU Kengeya-Kayondo J; Kamali A; Nunn AJ; Malamba S; Wagner HU; Mulder DW; Medical Research Council AIDS Programme, Entebbe, Uganda. SO Int Conf AIDS. 1994 Aug 7-12;10(1):24 (abstract no. 068C). Unique Identifier : AIDSLINE ICA10/94369854 AB OBJECTIVES: To determine over a three year period the HIV-1 incidence and to study risk factors associated with seroconversion in a rural population cohort. METHODS: A cohort of approximately 10,000 persons in a rural sub-county of S-W Uganda was enrolled in 1989-90 through sociodemographic and serological surveys which were repeated annually over a three year period. Serostatus was determined using two independent ELISA assays and western blotting when appropriate. Incidence rates were calculated per 1000 person years. Intervention efforts in the area include behaviour change messages and limited condom distribution. RESULTS: At the time of enrolment the overall prevalence of HIV-1 infection in the adult population was 8.2%. During three years of follow-up, the incidence of HIV-1 infection in adults (aged 13 yrs or more) was 6.2 (95% CI = 4.6 to 7.7). Although rates were highest in those aged 25-34 years (9.4), this was not significantly different from those aged 35 or more (6.6; p > 0.2); neither was the difference between males and females (6.5 and 5.9 respectively; p > 0.2). Annual incidence rates by calendar year declined from 7.5 in 1989/90 to 4.6 in 1993 (p > 0.2). Non-Muslims had a higher risk than Muslims (8.2 vs 3.9 p = 0.07) as did non-Baganda compared to Baganda (9.4 vs 6.0). Persons who had moved to their present residence less than 10 years previously were twice as likely to seroconvert than those who had been at their residence for longer (11.0 and 4.8 respectively; p < 0.04). CONCLUSIONS: In this rural population with a considerable HIV prevalence, incidence rates appear to be declining with only modest intervention efforts and are similar for different age groups. Special AIDS prevention efforts are needed to reach recent immigrants and to communicate better with minority tribes. DE Acquired Immunodeficiency Syndrome/*EPIDEMIOLOGY Adolescence Adult Cohort Studies Ethnic Groups Female Human HIV Seropositivity/*EPIDEMIOLOGY *HIV-1 Incidence Male Prevalence Risk Factors Rural Population Uganda/EPIDEMIOLOGY MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).