Table 1. Variable assignments of logistic regression analysis.

logistic regression	Dependent variables	Independent variable	Controlling variables
Model 1 (n = 3089)	Whether receiving WB confirmatory test for HIV screened reactive (1 = WB tested, 0 = Otherwise)	Service delivery models: Dummy coded with the CDC+CDC group as the reference group. (CDC+CDC = 1 if both rapid tests done by CDC, otherwise = 0; CBO+CBO = 1 if both rapid tests done by CBO, otherwise = 0; CBO+Hosp = 1 if first done by CBO and second by hospital, otherwise = 0; CBO+CDC = 1 if first done by CBO and second by CDC, otherwise = 0).	Socio demographics: age, education, marriage status, number of sexual partners, HIV testing history, recruitment channel, and program city.
Model 2 (n = 2706)	Whether receiving CD4 cell count test for newly identified HIV positives (1 = CD4 tested, 0 = Otherwise)
Model 3 (n = 2706)	Whether being referred to the designated ART hospitals for newly identified HIV positives (1 = Referred to hospital case management, 0 = Otherwise)
Model 4 (n = 2052)	Whether initiated ART for newly identified HIV positives (1 = ART initiated, 0 = Otherwise)