A dose-response relationship between exposure to a large-scale HIV preventive intervention and consistent condom use with different sexual partners of female sex workers in southern India

Table 3 Multivariable associations¹ (adjusted odds ratios [AOR]) and 95% confidence intervals (95% CIs): multivariate associations between social, environmental and intervention exposure factors and condom use with non-commercial partners. Five models (MODEL1-MODEL5) were constructed for each of the five explanatory variables for intervention exposure and each of the two outcomes, for 10 models total.

		Consistent condom use² with most recent non-paying partner		Consistent condom use² with husband or cohabiting partner
		AOR [95% CIs]	P	AOR [95% CIs]	P
1	Ever contacted by intervention staff (versus not ever contacted)	1.40 [0.47-4.18]	0.542	0.35 [0.11-1.16]	0.085
2	Had a condom demonstration by intervention staff (versus never had a condom demonstration)	1.72 [0.60-4.91]	0.311	0.50 [0.17-1.43]	0.194
3	Duration since first contacted by intervention staff Has not been contacted Less than one year (greater than zero) One year Two-three years Test for trends	1.0 (ref) 1.05 [0.34-3.29] 1.52 [0.43-5.40] 2.74 [0.64-11.74]	0.930 0.515 0.173 /	1.0 (ref) 0.39 [0.11-1.44] 0.48 [0.13-1.78] 0.20 [0.03-1.43]	0.156 0.272 0.108 /
4	Number of times contacted by intervention staff Zero Five or fewer (greater than zero) Greater than five Test for trends	1.0 (ref) 1.66 [0.56-4.93] 0.43 [0.09-2.09]	0.358 0.293 0.146	1.0 (ref) 0.42 [0.13-1.36] 0.43 [0.11-1.66]	0.146 0.219 /
5	Number of condom demos by staff seen past month Zero One Two Three or greater Test for trends	1.0 (ref) 3.43 [0.95-12.48] 3.39 [0.89-12.97] 1.02 [0.28-3.67]	0.061 0.074 0.979 /	1.0 (ref) 0.86 [0.23-3.15] 0.64 [0.18-2.27] 0.33 [0.10-1.00]	0.815 0.491 0.072 0.045

¹ Models were all adjusted for variables that were included a priori and variables that were significantly associated with each outcome on the p<0.10-level in bivariate analysis. For all three outcomes, a priori variables included district and typology of sex work (place of solicitation); for condom use with the husband or cohabiting partners, models were also adjusted by age at first sex work.
² Consistent condom use is defined as reporting always (100%) using condoms.
/ Test for trend not significant in bivariate analysis, and was not tested in multivariable models.

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