Table 3. HIV prevalence and proportion of undiagnosed HIV infection.

Participants	Age group (years)	N	HIV positive	Weighted HIV prevalence (95% CI)	Undiagnosed HIV	Weighted prevalence of undiagnosed HIV (95% CI)
All participants	All	5,486	141	2.60% (2.17%–3.11%)	53	37.7% (29.8%–46.2%)
	8–12	2,835	60	2.15% (1.61%–2.87%)	17	29.2% (17.5%–44.6%)
	13–17	2,651	81	3.07% (2.43%–3.87%)	36	43.9% (32.6%–55.9%)
Only participants with a urine test result	All	2,643	76	2.80% (2.02%–3.87%)	25	34.7% (23.5%–47.9%)
	8–12	1,401	36	2.53% (1.71%–3.70%)	10	28.1% (15.1%–46.2%)*
	13–17	1,242	40	3.10% (2.13%–4.51%)	15	40.7% (24.1%–59.7%)

*Two strata were combined, as 1 community had only 1 HIV-positive participant aged 8–12 years with a urine test result.