Increasing TB/HIV Case Notification through an Active Case-Finding Approach among Rural and Mining Communities in Northwest Tanzania

Table 4

Estimated prevalence of TB, with population group disaggregated.

	Number needed to screen (NNS) to find one person with TB		B+ TB prevalence rate		All forms TB prevalence rate
Key population	B+ TB	All forms TB	% Point estimate (95% CI)		% Point estimate (95% CI)
Adults in hard-to-reach communities	111	55	0.9%	(0.8–1.0%)	1.8%	(1.7–1.9%)
Children in hard-to-reach communities	174	48	0.6%	(0.5–0.7%)	2.1%	(1.9–2.3%)
Female sex workers (FSWs)	60	33	1.7%	(1.4–2.0%)	3.0%	(2.6–3.4%)
Artisanal scale miners (ASMs)	56	34	1.8%	(1.6–2.0%)	3.0%	(2.8–3.2%)
Total	97	48	1.0%	(0.9–1.1%)	2.1%	(2.0–2.2%)