TABLE III.

FACTORS ASSOCIATED WITH HSV-2 PREVALENCE IN HO CHI MINH CITY AND HANOI, VIETNAM (1997)

	HO CHI MINH CITY PR* (95% CI)	HANOI PR* (95% CI)
Age (years)
<25†	1	1
25–34	1.6 (1.1–2.4)	1.4 (0.7–3.0)
35–44	2.5 (1.7–3.6)	1.5 (0.7–3.2)
45–54	2.8 (2.0, 4.1)	1.0 (0.4–2.3)
55–64	2.9 (2.0–4.1)	1.5 (0.7–3.2)
≥65	2.5 (1.7, 3.7)	1.4 (0.6–3.3)
Marital status
Currently married†	1	1
Divorced	1.2 (0.9–1.6)	1.6 (0.7–3.5)
Widowed	1.5 (1.2–1.8)	1.1 (0.6–2.0)
Age at first pregnancy
<21	1.2 (1.0–1.5)	1.3 (0.8–1.9)
21–24	1.2 (0.9–1.4)	0.8 (0.4–1.4)
≥25†	1	1
Lifetime number of sexual partners
1†	1	1
>1	1.0 (0.8–1.3)	1.0 (0.5–2.2)
HPV DNA
No†	1	1
Yes	1.4 (1.2–1.7)	0.6 (0.1–3.9)

^*Prevalence ratio estimated with log-binomial regression model with all variables listed in the table;

^†Reference category.