by Patrick Appel

Chris Blattman flags a new paper:

Among young women, who experienced the greatest decline in HIV prevalence, the most important component was delaying sexual debut, accounting for 57 percent of the drop in HIV prevalence. Condom use by high risk males and to a lesser extent death (of older males) also played a significant role, accounting for 30 and 16 percent respectively. However, for older women, the trend is reversed, with death being more important than abstinence or condom usage.

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