Table 1 Characteristics of the CAPRISA 004 study population.

IQR, interquartile range.

VariableCases
(n = 59)
Median (IQR)
Controls
(n = 106)
Median (IQR)
P value
Age*23 (20–25)22 (20–28)0.864
Urban site19/59 (32.2)40/106 (37.7)0.503
Tenofovir (TFV)
arm*
23/59 (39.0)43/106 (40.6)0.87
DMPA use50/59 (84.7)85/106 (80.2)0.532
Vaginal
discharge
25/59 (42.4)35/106 (33.0)0.242
Ulcers1/59 (1.7)6/106 (5.7)0.423
HSV-2 serostatus
(at trial entry)
32/59 (54.2)53/106 (50.0)0.629
Sex acts, past 30
days
5 (2.5–6.6)5 (3–8)0.281
Parity1 (1,2)1 (1,1)0.878

*Part of the matching criteria.