Table 2.

Estimated associations between HCV infection and detectable HIV viral load among 441 women enrolled in the Women's Interagency HIV Study, January 2000-September 2015.

	HCV+ (n=114)	HCV- (n=327)	Overall (n=441)
Total study visits	1,509	4,014	5,523
Visits with detectable HIV viral load	708	1,356	2,064
Proportion of visits with detectable HIV viral load (95% CI)	0.47 (0.44, 0.49)	0.34 (0.32, 0.35)	0.37 (0.36, 0.38)
Crude risk ratio (95% CI)	1.39 (1.15, 1.68)	1	--
Weighted risk ratio (95% CI) a,b	1.19 (0.72, 1.95)	1	--

^a Weights account for the following set of time-fixed and time-varying covariates: age at ART initiation, race, history of injection drug use, year of ART initiation, CD4 cell count at ART initiation, HIV viral load at ART initiation, FIB-4 at ART initiation, current alcohol use, current drug use, and time.

^b 95% CI was estimated with a nonparametric bootstrap using 200 samples with replacement.