Table 6.

Adjusted Associations Between Covariates and Time-Varying Method Users (vs. Dual Method Users) Among Sexually Active HIV-Discordant Couples Who Are Not Currently Pregnant

	Primary analysis (1994–2012)				Subanalysis (2002–2011)
	aHR	95% CI		p-Value (two-tail)	aHR	95% CI		p-Value (two-tail)
Woman's age in years (aHR per 5-year increase)	0.94	0.90	0.98	0.024	0.98	0.92	1.04	0.766
Baseline contraceptive method used
None/condoms alone	Ref.				Ref.
OCP	1.07	0.91	1.27	0.406	0.96	0.77	1.19	0.703
Injectable	1.24	1.04	1.49	0.017	1.32	1.07	1.62	0.008
Implant	1.66	1.16	2.38	0.006	1.98	1.31	2.99	0.001
IUD	1.07	0.64	1.77	0.802	0.61	0.37	0.99	0.048
Sterilization	1.47	0.54	4.01	0.453	1.13	0.45	2.83	0.788
Time-varying contraceptive method use
OCP	Ref.				Ref.
Injectable	1.03	0.92	1.15	0.634	1.05	0.89	1.23	0.569
Implant	0.80	0.64	0.99	0.042	0.79	0.62	1.03	0.086
IUD	1.12	0.83	1.53	0.461	1.59	1.76	2.38	0.023
Sterilization	0.71	0.44	1.15	0.161	1.01	0.65	1.56	0.980
Fertility intentions of woman (2002–2011)
Yes, next year					1.07	0.81	1.41	0.647
Yes, but not next year					1.25	1.05	1.49	0.012
Don't know/no					Ref.
Circumcision × serostatus
M+F−
Yes	1.51	1.14	1.99	0.004	1.59	1.07	2.35	0.022
No	0.97	0.86	1.10	0.645	0.82	0.70	0.97	0.019
M−F+
Yes	0.93	0.78	1.12	0.446	0.85	0.63	1.15	0.289
No	Ref.				Ref.