Size of the four key populations at risk: (1) male clients of female sex workers (MCFSW), (2) men who have sex with men (MSM), (3) female sex worker (FSW)

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Presentation transcript:

Size of the four key populations at risk: (1) male clients of female sex workers (MCFSW), (2) men who have sex with men (MSM), (3) female sex worker (FSW) and (4) injection drug users (IVDU) estimated by the basic NSUM model (in grey), the NSUM model adjusting for transmission error (in blue), and the NSUM model adjusting for both transmission error and barrier effect (in red). Size of the four key populations at risk: (1) male clients of female sex workers (MCFSW), (2) men who have sex with men (MSM), (3) female sex worker (FSW) and (4) injection drug users (IVDU) estimated by the basic NSUM model (in grey), the NSUM model adjusting for transmission error (in blue), and the NSUM model adjusting for both transmission error and barrier effect (in red). The estimated size of the populations at risk is presented with its 95% credible interval. The interpretation of violin plots is similar to box plots; they display the probability density of the prevalence estimates at different values. Points are posterior median prevalence estimates, and curves are posterior distributions of the parameters truncated to within 95% CIs (all tabulated in the table on the right). Distribution of individual perceptions of how socially acceptable the four at-risk populations are is presented on the left. This correction factor was introduced into the adjusted models to account for transmission error. NSUM, network scale-up method. Alvin Kuo Jing Teo et al. Sex Transm Infect doi:10.1136/sextrans-2018-053747 ©2019 by BMJ Publishing Group Ltd