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UNESCO HIV and Health Education Clearinghouse

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  1. Assessment of the psychometric properties of HIV knowledge items across five countries

    HIV knowledge is commonly measured in HIV prevention research and program evaluations, but rigorous measurement standards are not always applied. Using item response theory methods, we examined the psychometric functioning of five commonly used HIV knowledge questions in five countries with varying HIV prevalence. We evaluated the internal consistency and measurement invariance of the items. The items performed poorly in all samples and the scale as a whole did not perform equally across samples. …

  2. Trends in HIV prevalence and sexual behaviour among young people aged 15-24 years in countries most affected by HIV

    Objectives: In 2001 the United Nations (UN) Declaration of Commitment was signed by 189 countries with a goal to reduce HIV prevalence among young people by 25% by 2010. Progress towards this target is assessed. In addition, changes in reported sexual behaviour among young people aged 15e24 years are investigated. Methods: Thirty countries most affected by HIV were invited to participate in the study. Trends in HIV prevalence among young antenatal clinic (ANC) attendees were analysed using data from sites that were consistently included in surveillance between 2000 and 2008. …

  3. Changes in HIV prevalence among differently educated groups in Tanzania between 2003 and 2007

    Objective: HIV prevalence trends suggest that the epidemic is stable or declining in many sub-Saharan African countries. However, trends might differ between socioeconomic groups. Educational attainment is a common measure of socioeconomic position in HIV datasets from Africa. Several studies have shown higher HIV prevalence among more educated groups, but this may change over time. We describe changes in HIV prevalence by educational attainment in Tanzania from 2003 to 2007. …

  4. HIV infection and sexual risk behaviour among youth who have experienced orphanhood: systematic review and meta-analysis

    Background: Previous research has suggested that orphaned children and adolescents might have elevated risk for HIV infection. We examined the state of evidence regarding the association between orphan status and HIV risk in studies of youth aged 24 years and younger. Methods: Using systematic review methodology, we identified 10 studies reporting data from 12 countries comparing orphaned and non-orphaned youth on HIV-related risk indicators, including HIV serostatus, other sexually transmitted infections, pregnancy and sexual behaviours. …

  5. Changes over time in sexual behaviour among young people with different levels of educational attainment in Tanzania

    HIV prevalence in Tanzania was initially higher among those with higher levels of educational attainment, but it has fallen fastest among these groups. Among those with lower levels of education, HIV prevalence has been stable. The authors analyzed data from two large, nationally representative surveys conducted in Tanzania in 2003/2004 and 2007/2008. They focused on young people ages 15 to 24 years and explored reports of (a) first sex, (b) having had more than one sexual partner in the last year and (c) unprotected last sex with a non-cohabiting partner. …

  6. Factors associated with HIV infection among sexually experienced adolescents in Africa: a pooled data analysis

    The article examines the factors associated with HIV status among adolescents aged 15–19 years in 13 African countries. The data were derived from demographic and health surveys or AIDS indicator surveys conducted between 2004 and 2009. The levels of HIV prevalence among adolescents varied considerably across the countries. There was significantly higher HIV prevalence among female adolescents as compared with their male counterparts. For male adolescents, circumcision was the only variable significantly associated with HIV status. …

  7. Dating violence among school students in Tanzania and South Africa: prevalence and socio-demographic variations

    Aims: To identify with whom in-school adolescents preferred to communicate about sexuality, and to study adolescents' communication on HIV/AIDS, abstinence and condoms with parents/guardians, other adult family members, and teachers. Data were obtained from a baseline questionnaire survey carried out in South Africa (Cape Town and Mankweng) and Tanzania (Dar es Salaam) in early 2004. We analysed data for 14,944 adolescents from 80 randomly selected schools. …

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