Table 2.

Results of multivariable analysis of risk factors for diagnosis of incident genital warts.

		Hazard Ratio (HR)	95% Lower CL	95% Upper CL	p-value
CD4+	HIV− (ref)				<.0001*
	>500	2.72	1.60	4.62	<.0001
	200–500	6.67	3.99	11.14	<.0001
	<200	16.58	9.85	27.91	<.0001
Age	<30 (ref)
	30–34	0.82	0.58	1.16	0.26
	35–39	0.70	0.48	1.02	0.06
	40–44	0.53	0.36	0.78	0.002
	>45	0.38	0.26	0.58	<.0001
Smoking	Never (ref)
	Former	0.99	0.70	1.40	0.95
	Current	1.80	1.37	2.38	<.0001

^*P for trend.