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Table 2 HSV-2 seroconversion by selected demographic and behavioural factors

From: Predictors of incident herpes simplex virus type 2 infections in young women at risk for unintended pregnancy in San Francisco

  HSV-2 seroconversion COR (95% CI) AOR (95% CI)
  % n/N   
Total 4.4 73/1672   
Race
   White 3.7 19/519 Referent  
   Latina 3.7 12/322 1.02 (0.49–2.13)  
   Black 7.5 18/239 2.14 (1.10–4.16) 2.31 (1.28–4.14)
   API 3.6 14/389 0.98 (0.49–1.99)  
   Multi/Other 4.9 10/203 1.36 (0.62–2.99)  
Age
   15–19 3.6 29/801 Referent  
   20–24 5.1 44/871 1.42 (0.88–2.29) 0.89 (0.50–1.58)
Age at first sexual intercourse
   > 15 years 4.7 45/960 Referent  
   ≤ 15 years 3.9 28/712 0.83 (0.51–1.35)  
Ever pregnant
   No 3.6 41/1156 Referent  
   Yes 6.2 32/516 1.80 (1.12–2.89) 1.61 (0.99–2.63)
Ever diagnosed with an STI (N = 1640)
   No 4.0 53/1312 Referent  
   Yes 6.1 20/328 1.54 (0.91–2.62)  
CT-infected at enrollment (N = 1640)
   No 4.2 66/1572 Referent  
   Yes 10.3 7/68 2.62 (1.15–5.95)  
Number of partners in last 6 months
   1 partner 3.7 45/1203 Referent  
   ≥ 2 partners 6.0 28/469 1.63 (1.01–2.65) 1.75 (1.07–2.89)
Any unprotected sexual intercourse in last 6 months (N = 1670)
   No 3.6 32/900 Referent  
   Yes 5.3 41/770 1.53 (0.95–2.45)  
Last sexual intercourse was unprotected (N = 1671)
   No 4.0 60/1519 Referent  
   Yes 8.6 13/152 2.27 (1.22–4.25)  
Currently uses condoms (N = 1671)
   No 4.9 29/592 Referent  
   Yes 4.1 44/1079 0.83 (0.51–1.33)  
Condom use at last intercourse (N = 1671)
   No 5.5 40/728 Referent  
   Yes 3.5 33/943 0.62 (0.39–1.00) 0.56 (0.34–0.92)
Pressured into having sex in last 6 months (N = 1667)
   No 4.1 65/1575 Referent  
   Yes 8.7 8/92 2.21 (1.03–4.76)  
Last sexual partner over 25 years old (N = 1672)
   No 3.7 46/1235 Referent  
   Yes 6.2 27/437 1.70 (1.04–2.77) 1.58 (0.90–2.76)
  1. HSV-2, herpes simplex virus type 2; COR, crude odds ratio; AOR, adjusted odds ratio; CI, confidence interval; API, Asian or Pacific Islander; STI, sexually transmitted infection; CT, Chlamydia trachomatis.