Table 1.

Demographic and HIV risk characteristics at baseline among analysis groups in the iPrEx study

	Cases N=48	Controls N=144	p-value
Baseline	mean (sd)
Age in years	24 (6)	27 (8)	0.01
Calculated CrCl ml/min	125 (23)	121 (22)	0.30
Male Partners In past 6 months	12 (32)	13 (46)	0.78
	n (%)
Secondary School	31 (66%)	109 (76%)	0.19
Alcohol Use (≥5 drinks per day on days when drinking)	24 (52%)	74 (54%)	0.87
Unprotected Receptive Anal Intercourse	34 (71%)	109 (76%)	0.57
History of sexually transmitted infection in past 6 months	15 (31%)	52 (36%)	0.60
Herpes seropositive	24 (50%)	69 (48%)	0.87
At Time of HIV Detection in Cases	mean (sd)
Weeks on Study	63 (35)	65 (36)	0.73
	n (%)
Unprotected Receptive Anal Intercourse	19 (40%)	74 (51%)	0.18