Table 3.

Studies reporting incidence rates of AGWs in men and women

Author, year	Country	Study design	Study population	Sample	Mean or	Incidence rate/1002	HIV −1	Comments
			and site	size	median age	person-years of	prevalence%
					(years, range)	AGWs2
East Africa
Lavreys et al., 1999 [50]	Kenya	Prospective cohort	HIV negative truck drivers in Mombasa	746	26a (17–58) 29b (16–62)	1.4 overall 1.7 Uncircumcised 1.3 Circumcised		Annual incidence of HIV-1 – 3.0%
West Africa
Ozumba et al., 1991 [51]	Nigeria	Retrospective cohort (1976–85)	Female STD1 clinic attendees	45	21 ( 5–36)	2.7 (range:1.6 – 3.6)		AGWs incidence highest among teenagers and students
Low et al., 2011 [44]	Burkina Faso	Prospective cohort	Female sex workers and other women at high risk	765	28 (15–54)	1.1 HIV -	34.9	HIV- 1 & HIV-2 prevalence 0.7%

^a uncircumcised men.

^b circumcised men.

¹Sexually Transmitted Diseases.

²Anogenital warts.