Fig. 2

a Histogram showing the distribution of the number of lifetime sex partners for women (aged 15–49 years old). Data are from the 7396 women in the 2010 Malawi Demographic and Health Survey (MDHS) who were tested for HIV. b Histogram showing the distribution of the number of lifetime sex partners for men (aged 15–49 years old). Data are from the 6509 men in the 2010 MDHS who were tested for HIV. c HIV prevalence (%) stratified by number of lifetime sex partners. Data are from the 7396 women and 6509 men in the 2010 MDHS who were tested for HIV