Table 3.

Recent and lifetime sexual activity and other potential risk factors for incident HPV DNA detection among all women and restricted to women reporting no new sexual partners in the 6 months prior to baseline through study follow-up

	All women Unadjusted HR (95% CI)	All womena Adjusted HR (95% CI)	Restrictedb Adjusted HR (95% CI)
Recent sexual activityc
No sex	REF	REF	REF
No new partners	0.9 (0.5, 1.4)	1.5 (0.9, 2.7)	1.7 (0.9, 3.4)
New partners	3.3 (1.5, 7.4)	2.5 (1.1, 5.7)	N/A
Lifetime number partners
< 5	REF	REF	REF
≥ 5	4.8 (3.0, 7.9)	3.4 (1.9, 6.2)	4.1 (2.0, 8.4)
Age in years
< 50	REF	REF	REF
≥ 50	0.7 (0.5, 1.0)	0.8 (0.5, 1.2)	0.7 (0.4, 1.3)
Marital status
Married	REF	REF	REF
Divorced/Separated/Widowed/Single	4.8 (3.3, 6.9)	4.3 (2.7, 7.0)	5.7 (3.1, 10.4)
Race
White/Caucasian	REF	REF	REF
Black/African-American	1.1 (0.7, 1.8)	1.4 (0.8, 2.3)	0.7 (0.3, 1.4)
Other	1.0 (0.5, 2.0)	0.9 (0.3, 2.5)	0.7 (0.2, 2.4)
Ever abnormal Pap
No	REF	REF	REF
Yes	2.1 (1.5, 3.0)	1.6 (1.0, 2.5)	1.6 (0.9, 2.7)

Abbreviations: HR (hazard ratio); CI (confidence interval)

^aMutually adjusted for all other variables in the table

^bExcludes women (n=71) who reported a new sexual partner within the 6 months prior to baseline through the end of study follow-up. Mutually adjusted for all other variables in the table and time-varying no sex vs. sex but no new partners

^cRecent sexual activity included as a time-varying variable, lagged by one visit