HIV infections appear to be concentrating among the least educated people in Africa, reversing previous patterns which saw higher levels of infection among the most educated, according to a study published today in the journal AIDS.
A team led by Dr. James Hargreaves of the London School of Hygiene & Tropical Medicine (LSHTM) sought to assess whether the profile of people infected with HIV is changing over time in sub-Saharan Africa.
HIV has spread rapidly in Africa, the worlds poorest region, and is widely characterised as a disease of poverty. However, the situation is more complex than this. In 2001, an LSHTM team, also led by Dr. Hargreaves, found that before 1996, individuals with the highest levels of education were often more likely to be infected with HIV than less educated people, perhaps because they were wealthier, more mobile and had broader networks of sexual partners.
The new article updates this work and draws a different conclusion. The LSHTM team screened over 4000 research papers to identify relevant data collected all around the world, eventually identifying 36 studies conducted in 11 countries between 1987 and 2003 representing data on over 200,000 individuals.
They found that in data from after 1996 more studies found a lower risk of HIV infection among the most educated. Where data over time were available from the same place, HIV prevalence fell more consistently among highly educated groups than among less educated groups. HIV prevalence sometimes rose among the less educated even while it fell among the overall population.
Dr. Hargreaves comments: At the time of our initial review, we speculated that, as HIV education campaigns developed in sub-Saharan Africa, the most educated, empowered members of society would be the first to adopt protective behaviours such as reducing numbers of partners and using condoms. And since HIV campaigns are often delivered within schools, we also speculated
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| Contact: Lindsay Wright lindsay.wright@lshtm.ac.uk 020-792-72073 London School of Hygiene & Tropical Medicine Source:Eurekalert |