Table 2.

Seroincidence rates per 100 person-years for the HIV cohort of repeat-testers who were HIV-uninfected at baseline (2011).

	Person-years	Events	Incidence per 100 person-years
			Rate	95% CI
Population HIV prevalence
0–14.9%	935	18	1.92	(1.21–3.05)
15–24.9%	15,693	480	3.06	(2.8–3.34)
25+%	9,590	361	3.76	(3.4–4.17)
Sex
Male	9,943	194	1.95	(1.69–2.25)
Female	16,276	665	4.09	(3.79–4.41)
Age strata
15−	9,228	257	2.78	(2.46–3.15)
20−	4,998	287	5.74	(5.11–6.45)
25−	2,838	157	5.53	(4.73–6.47)
30−	1,727	66	3.82	(3–4.86)
35−	1,735	29	1.67	(1.16–2.4)
40−	2,015	30	1.49	(1.04–2.13)
45+	3,675	33	0.9	(0.64–1.26)
Area of residence
Rural	16,817	510	3.03	(2.78–3.31)
Peri-urban	8,381	312	3.72	(3.33–4.16)
Urban	1,019	37	3.63	(2.63–5.01)
Marital status
Single	15,078	448	2.97	(2.71–3.26)
Married monogamous	5,898	196	3.32	(2.89–3.82)
Married polygamous	5,242	215	4.1	(3.59–4.69)
Number of partners in the last 12 months
Zero	11,827	328	2.77	(2.49–3.09)
One	10,291	368	3.58	(3.23–3.96)
More than one	4,100	163	3.98	(3.41–4.64)
Household wealth quintile
Poorest	5,348	201	3.76	(3.27–4.31)
2nd poorest	5,428	163	3.00	(2.58–3.5)
3rd poorest	5,932	218	3.67	(3.22–4.2)
4th poorest	5,363	172	3.21	(2.76–3.72)
Wealthiest	4,146	105	2.53	(2.09–3.07)
N = 8,732