Table 6.

Factors Associated With Incident Vaginal Intraepithelial Neoplasia in Multivariable Analysis

Characteristic		Hazard Ratio	Lower 95% Confidence Limit*	Upper 95% Confidence Limit	P
CD4 count (per μl)	HIV seronegative (ref)	1			<.0001†
	Greater than 500	5.90	1.73	20.08	0.005
	200–500	14.48	4.52	46.43	<.0001
	Less than 200	22.50	6.89	73.49	<.0001
Age (years)	Less than or equal to 34 (ref)	1
	35–39	0.83	0.46	1.48	0.53
	40–44	0.76	0.41	1.39	0.37
	Greater than or equal to 45	1.09	0.62	1.94	0.76
Ethnicity	Black (ref)	1
	Hispanic	0.65	0.39	1.06	0.08
	Other	0.64	0.36	1.13	0.12
Smoking	Never (ref)	1
	Former	1.33	0.72	2.47	0.36
	Current	1.90	1.13	3.21	0.02
No. of sexual partner in past 6 months	0 (ref)	1
	1	0.91	0.60	1.37	0.64
	2 or more	0.71	0.34	1.50	0.37
Parity	0 (ref)	1
	1	0.86	0.50	1.46	0.57
	2	0.39	0.20	0.74	0.004
	Greater than or equal to 3	0.64	0.38	1.05	0.08

^*Confidence limit

^†P for trend