Research aimed at investigating sexual behaviour and assessing interventions to improve
sexual health has increased in recent decades. The resulting data, despite regional …

Background The roll-out of antiretroviral therapy (ART) has changed contexts of HIV risk, but
the influence on HIV incidence among young women is not clear. We aimed to summarise …

Objectives: To estimate the proportion of the male population that reports having paid for sex
in different regions. Methods: Clients of sex workers were identified from representative …

Objectives: To describe recent trends in age at first sex in African countries, identifying and
making due allowances for a variety of common reporting errors. Methods: Demographic …

Background: The rollout of antiretroviral therapy (ART) is one of the largest public health
interventions in Eastern and Southern Africa of recent years. Its impact is well described in …

Background As the HIV epidemic in sub-Saharan Africa matures, evidence about the age
distribution of new HIV infections and how this distribution has changed over the epidemic is …

Background: The Spectrum program is used to estimate key HIV indicators for national
programmes. The purpose of the study is to describe the key updates made to Spectrum in …

Objective To assess the effect of a mobile phone-based intervention (mHealth) on post-
abortion contraception use by women in Cambodia. Methods The Mobile Technology for …

Objectives: To investigate whether the indicators of sexual risk behaviour, defined by
UNAIDS for use among members of general populations, have been found as risk factors, to …

Background A quarter of a century ago, two global events—the International Conference on
Population and Development in Cairo, and the Fourth World Conference on Women in …