Table 1

Determinants of HSV-2 shedding in genital tract of pregnant women in South Africa, 2010 (n=615)

HSV-2 (baseline) UnadjustedMultivariable adjusted*
VariableNegative (n=552)Positive (n=63)p ValueOR (95% CI)p Value
Age group: n (row %)
 18–24293 (88.0)40 (12.0)0.281 (ref.)
 25–34219 (91.6)20 (8.4)0.47 (0.25 to 0.91) 0.02
 35+40 (93.0)3 (7.0)0.29 (0.07 to 1.24) 0.09
Socioeconomic status: n (row %)
 Low196 (87.5)28 (12.5)0.341 (ref.)
 Medium235 (92.2)20 (7.8)0.63 (0.36 to 1.12)0.12
 High107 (88.4)14 (11.6)0.98 (0.48 to 1.98)0.95
 Unknown14 (93.3)1 (6.7)0.48 (0.06 to 3.99)0.50
HIV-1: n (row %)
 Negative357 (92.7)28 (7.3) 0.00 1 (ref.)
 Positive195 (84.8)35 (15.2)2.46 (1.43 to 4.21) 0.00
Neisseria gonorrhoeae, n (row %)
 Negative511 (89.8)58 (10.2)0.601 (ref.)
 Positive34 (87.2)5 (12.8)1.02 (0.37 to 2.81)0.97
Trichomonas vaginalis, n (row %)
 Negative464 (89.7)53 (10.3)0.831 (ref.)
 Positive81 (89.0)10 (11.0)0.93 (0.44 to 1.96)0.85
Chlamydia trachomatis, n (row %)
 Negative443 (89.7)51 (10.3)0.971 (ref.)
 Positive103 (89.6)12 (10.4)0.92 (0.46 to 1.84)0.81
Gravidity: median (IQR) 2 (1–2)2 (1–3)0.621.26 (0.95 to 1.66)0.11
Clinical: n (%)
 Asymptomatic363 (90.3)39 (9.7)0.531 (ref.)
 Symptomatic188 (88.7)24 (11.3)0.99 (0.57 to 1.74)0.98
  • *Adjusted for socioeconomic status, gravidity, chlamydia, trichomonas and gonorrhoea.

  • HSV-2, herpes simplex virus-2.