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Table 1 PEO (Population, Exposure, Outcomes) framework

From: Prevalence of gonococcal and chlamydial infections among men who have sex with men in sub-Saharan Africa: protocol for a systematic review and meta-analysis

Population

MSM in sub-Saharan Africa

Intervention/Exposure

Prevalence of chlamydia and gonorrhoea infections determined by syndromic management or laboratory testing for urethral/pharyngeal/rectal infection

Outcomes

Overall and anatomical site-specific prevalence rates, and risk factors for chlamydia and gonorrhoea