Table 4.

Association between outcomes (condom use and STIs, including HIV) and rounds of IBBA, Maharashtra, India ^{a, b}

Variables		Odds ratio (95% CI)	Odds ratio (95% CI)
		Unadjusted models	Adjusted modelsc
A. Condom use
Condom use during the last sex act	With regular male partner	1.93 (1.48 – 2.53)**	5.15 (2.68 – 9.90)**
	With paying male partner	13.77 (2.94 – 64.59)**	13.23 (2.84 – 61.92)**
	With paid male/hijra partner	0.24 (0.08 – 0.73)*	0.91 (0.27 – 3.10)
	With other non-commercial male/hijra partner	0.88 (3.16 – 6.74)	0.71 (0.27 – 1.85)
Consistent condom use	With regular male partner(s)	1.07 (0.83 – 1.38)	1.90 (1.01 – 3.58)*
	With paid male/hijra partner(s)	0.26 (0.06 – 1.10)	0.57 (0.16 – 2.08)
	With other non-commercial male/hijra partner(s)	1.45 (0.64 – 3.31)	1.71 (0.82 – 3.58)
B. Sexually transmitted infections (including HIV)
Type of infections	Reactive Syphilis Serology†	0.12 (0.05 – 0.25)**	0.11 (0.05 – 0.22)**
	Syphilis titre > 1:8 ††	0.06 (0.02 – 0.19)**	0.08 (0.03 – 0.27)**
	Chlamydia infection	0.04 (0.02 – 0.07)**	0.35 (0.05 – 2.41)
	Neisseria gonorrhoea infection	0.003 (0.001 – 0.010)	--
	HIV 1 infection	0.48 (0.17 – 1.34)	0.39 (0.17 – 0.87)*

^a = The estimates shown here are weighted estimates.

^b = The reference for each of the estimate is Round 1 of the IBBA. Thus, for consistent condom use with a regular male partner, the interpretation will be as follows: subjects in Round 2 of IBBA were significantly more likely to report consistent condom use with a regular male partner, compared with those in Round 1 of IBBA (OR: 1.90, 95% CI: 1.01 – 3.58).

^c = The models were adjusted for district of interview, self-reported sexual identity, current age, literacy, place of residence, sex outside place of residence, and main source of income.

*p = 0.05, ** p < 0.01.

^† = Any person reactive on RPR and TPHA.

^†† = The titre obtained on RPR was used to measure this variable.