Table 2.

Bivariate and multivariate associations between baseline characteristics and HIV risk outcomes at 14 weeks postpartum

	Sexually active since delivery		Perceived partner concurrency		Physical IPV since delivery		Relationship Power
	Model 1 (bivariate)	Model 2^a (multivariate)	Model 1 (bivariate)	Model 2^a (multivariate)	Model 1 (bivariate)	Model 2^a (multivariate)	Model 1 (bivariate)	Model 2^a (multivariate)
	OR (95% CI)^b		OR (95% CI)^b		OR (95% CI)^b		β (95% CI)^c
Age (adult mother=referent group)
Adolescent mother (< 18 years)	0.18^** (0.07,0.46)	0.50 (0.16,1.52)	3.29^** (1.47,7.38)	4.71^** (1.60,13.87)	2.33 (0.79,6.88)	1.33 (0.32,5.57)	−46.66^** (−48.74,−44.58)	−46.29^*** (−48.86,−43.72)
Young mother (18–24 years)	0.99 (0.69, 1.44)	1.75^* (1.06,2.89)	0.95 (0.60,1.51)	1.00 (0.55,1.80)	2.37^** (1.31, 4.27)	2.53^* (1.13,5.68)	0.24 (−0.74,1.21)	0.08 (−1.18,1.35)
Living with partner	1.83^** (1.20,2.79)	1.54^{^} (0.93,2.55)	0.66 (0.39,1.13)	0.64 (0.34,1.19)	0.63 (0.33,1.20)	0.75 (0.34,1.67)	2.88^* (0.45,5.31)	0.36 (−0.92,1.63)
Primary partner’s age	1.06^** (1.03,1.09)	1.06^** (1.02,1.11)	0.99 (0.96,1.03)	1.03 (0.99,1.08)	0.95^* (0.91, 0.99)	0.97 (0.91,1.03)	0.47^*** (0.32,0.62)	−0.04^** (−0.14,0.07)
Relationship length (in years)	1.04^{^} (1.00,1.09)	0.99 (0.94,1.04)	0.97 (0.92,1.02)	0.98 (0.91,1.04)	1.01 (0.95, 1.07)	1.10^* (1.01,1.19)	0.44^** (0.20,0.68)	0.04 (−0.09,0.18)

^{^}

p<0.10

p<0.05

^**

p<0.01

^***

p<0.001

Controlled for gestational age at first antenatal visit, SES, matriculation and study arm

Estimated using logistic regression

Estimated using linear regression