Trends in HIV and sexual behaviour in a longitudinal study in a rural population in Tanzania, 1994–2000

Mwaluko, Gabriel; Urassa, Mark; Isingo, Raphael; Żaba, Basia; Jt, Boerma

doi:10.1097/00002030-200312050-00012

Cited by 91 publications

(90 citation statements)

References 14 publications

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“…Other related methods have also been developed that are thought to reduce social desirability bias either by providing greater confidentiality (for example, by conducting interviews in specially constructed huts 22 ) or through more in depth interviews in which emphasis is placed on building rapport and where more extensive internal consistency checks can be conducted during the interviews. 23 However, very few formal evaluations of applications of such methods in developing country settings have been published.…”

Section: Discussionmentioning

confidence: 99%

Informal confidential voting interview methods and temporal changes in reported sexual risk behaviour for HIV transmission in sub-Saharan Africa

Gregson

2004

Sexually Transmitted Infections

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Objectives: Reliable data on sexual behaviour trends are needed to evaluate HIV interventions in subSaharan Africa but are difficult to obtain due inter alia to social desirability bias. The objective of this paper is to assess whether the use of informal confidential voting interviews (ICVI) was associated with greater reporting of socially proscribed behavioural risk factors for HIV infection than were conventional interviewing methods. Methods: Comparison of changes in reports of risk behaviours for HIV infection in ICVI versus face to face interviews (FTFIs) between the first two rounds of a large scale, longitudinal, population based survey in Manicaland, Zimbabwe. Examination of factors that could contribute to observed changes in the effect of ICVI, including temporal changes in response error and social desirability, and factors affecting statistical power to detect differences between methods-that is, reductions in the prevalence of risk behaviours and sample size. Results: Enhanced reporting of HIV associated risk behaviours in ICVI interviews was not so apparent in the second round as in the first round of the survey, particularly for less frequently reported behaviours. Levels of reported HIV associated risk behaviour and sample sizes both declined between the two survey rounds. The level of response error was higher in ICVI interviews than in FTFI interviews but did not alter over time. Conclusion: ICVI interviews can reduce social desirability bias in data on HIV associated risk behaviours. The extent and direction of change in net reduction in bias over time remains uncertain and will depend on local circumstances.

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Section: Discussionmentioning

confidence: 99%

Informal confidential voting interview methods and temporal changes in reported sexual risk behaviour for HIV transmission in sub-Saharan Africa

Gregson

2004

Sexually Transmitted Infections

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“…It is predominately rural with a small trading centre on the main road. The average HIV prevalence between 1994 and 2010 was 6% [20]. The Manicaland study (managed by the Biomedical Research and Training Institute and Imperial College London) in Zimbabwe was established in 1998.…”

Section: Methodsmentioning

confidence: 99%

The effects of HIV on fertility by infection duration

Marston

Nakiyingi‐Miiro

Kusemererwa

et al. 2017

Aids

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on behalf of the ALPHA network 1 Objectives: To estimate the relationship between HIV natural history and fertility by duration of infection in east and southern Africa before the availability of antiretroviral therapy and assess potential biases in estimates of age-specific subfertility when using retrospective birth histories in cross-sectional studies.Design: Pooled analysis of prospective population-based HIV cohort studies in Masaka (Uganda), Kisesa (Tanzania) and Manicaland (Zimbabwe).Methods: Women aged 15-49 years who had ever tested for HIV were included. Analyses were censored at antiretroviral treatment roll-out. Fertility rate ratios were calculated to see the relationship of duration of HIV infection on fertility, adjusting for background characteristics. Survivorship and misclassification biases on age-specific subfertility estimates from cross-sectional surveys were estimated by reclassifying person-time from the cohort data to simulate cross-sectional surveys and comparing fertility rate ratios with true cohort results.Results: HIV-negative and HIV-positive women contributed 15 440 births and 86 320 person-years; and 1236 births and 11 240 000 person-years, respectively, to the final dataset. Adjusting for age, study site and calendar year, each additional year since HIV seroconversion was associated with a 0.02 (95% confidence interval 0.01-0.03) relative decrease in fertility for HIV-positive women. Survivorship and misclassification biases in simulated retrospective birth histories resulted in modest underestimates of subfertility by 2-5% for age groups 20-39 years.Conclusion: Longer duration of infection is associated with greater relative fertility reduction for HIV-positive women. This should be considered when creating estimates for HIV prevalence among pregnant women and prevention of mother-to-child transmission need over the course of the HIV epidemic and antiretroviral treatment scale up.

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“…The findings of these studies showed that the prevalence of infection in children aged 5-14 years (an age-range in which they are less likely to have acquired the Proportion of study population infected (%) Figure 1: HIV prevalence by age and sex in Addis Ababa, Ethiopia, 1994 the incidence of HIV-1 infection in women and men, however, are greatest at ages before those at which injection differences are large. Figure 2 shows the age patterns of the female-to-male ratio for HIV-1 incidence from two rural community cohort studies 41,42 in Uganda and Tanzania, and the incidence of injections (from national demographic and health surveys in Uganda in 2000). 43 Sexual transmission is the most likely explanation for the pronounced incidence of HIV-1 infection among women following the years of sexual debut.…”

Section: Age and Sex Patterns Of Infectionmentioning

confidence: 99%

Transmission of HIV-1 infection in sub-Saharan Africa and effect of elimination of unsafe injections

et al. 2004

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Trends in HIV and sexual behaviour in a longitudinal study in a rural population in Tanzania, 1994–2000

Cited by 91 publications

References 14 publications

Informal confidential voting interview methods and temporal changes in reported sexual risk behaviour for HIV transmission in sub-Saharan Africa

Informal confidential voting interview methods and temporal changes in reported sexual risk behaviour for HIV transmission in sub-Saharan Africa

The effects of HIV on fertility by infection duration

Transmission of HIV-1 infection in sub-Saharan Africa and effect of elimination of unsafe injections

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