. 2012 Aug 7;206(8):1291–1298. doi: 10.1093/infdis/jis494

Table 1.

Odds Ratios of Epidemiological Surveys of Concurrent and Sequential Human Papillomavirus Infection

Survey	Concurrent ORs, Adjusted		Sequential ORs, Adjusted		Cohort	Follow-up Timing
Survey	Lowest	Highest	Lowest	Highest	Cohort	Length	Interval
Thomas et al 2000 [7]	3.3^a	12.2 (4.2–35.8)^b	0.5^a	9.4 (1.2–74.5)^b,c	Women aged 18–20 y	34 mo	4 mo
Liaw et al 2001 [5]	NM	NM	1.9^a	7.9 (3.6–17.2)^b	Women; median age, 23 y	25 mo	12 mo
Rousseau et al 2001 [4]	NM	NM	2.1 (1.5–3.1)^b,c	2.6 (1.7–4.2)^b,c	Women aged 18–60 y	5 y	4–6 mo
Mendez et al 2005 [6]	3.3^a	25^d	2.6^a	12.5^d	Women aged 15–85 y	4 y	7 mo
Kjaer et al 2005 [9]	NM	NM	NM	4.1 (1.4–12.3)^b	Men aged 18–29 y	6–8 mo	6–8 mo
Chaturvedi et al 2011 [8]	NM	2.25 (2.12–2.38)^b	NM	NM	Women aged 18–25 y	NA	NA

Surveys were adjusted for factors such as subject age, number of lifetime sexual partners, and recent sexual partners.

Abbreviations: NA, not applicable; NM, not measured; OR, odds ratio.

^a Not statistically significant.

^b 95% confidence interval.

^c Hazard ratio.

^d P value declared significant, but confidence interval not reported.