Spearman rank correlation coefficients (<i>r<sub>s</sub></i>) between HIV/syphilis prevalence and study time (2000–2011) in each subgroup.
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*Comprising “Unspecified (6), Entertainment Venues and Reeducation Centers (6), Medical Institutions (1), Reeducation Centers and STD Clinics (1) and STD Clinics (1)”. †Comprising “Cohort Study (1) and Intervention Study (8)”. ‡RDS: Respondent Driven Sampling. §Sorted into three groups: Confirmatory tests (ELISA + Western blot, ELISA-1 + ELISA-2, ELISA-1 + ELISA-2 + Western blot, Immunocolloidal gold + Western blot, ELISA + Immunocolloidal gold + Western blot); Single method (single ELISA); and Unspecified (exact methods not presented although diagnosis of HIV infection based on positive serological tests). ||Sorted into three groups: Treponemal tests (Treponema pallidum particle agglutination assay – TPPA, Enzyme-Linked Immuno Sorbent Assay – ELISA, Treponema pallidum hemagglutination assay – TPHA, Immunocolloidal gold); Nontreponemal tests (Rapid plasma reagin – RPR, Toluidine red unheated serum test – TRUST, Unheated serum reagin – USR); and Unspecified (exact methods not presented although diagnosis of syphilis infection based on positive serological tests).
