Baseline Trachoma Surveys in Kaskazini A and Micheweni Districts of Zanzibar: Results of Two Population-Based Prevalence Surveys Conducted with the Global Trachoma Mapping Project

Figures & data

Figure 1. Map of Kaskazini A and Micheweni showing prevalence of (a) trachomatous inflammation–follicular (TF) in children aged 1–9 years, and (b) trachomatous trichiasis (TT) in people aged 15 years and older, Global Trachoma Mapping Project, Zanzibar, 2015.

Table 1. Characteristics of survey population by district, Global Trachoma Mapping Project, Zanzibar, 2015.

Zone (Island)	District	Households sampled, n	Children aged 1–9 years		People aged 15+ years
			Examined, n	Male, %	Examined, n	Male, %
Unguja	Kaskazini A	854	1413	48.5	1885	33.3
Pemba	Micheweni	819	1412	50.4	1697	35.0
Total		1673	2825	49.4	3582	34.1

Table 2. Prevalence of trachoma signs and proportion of households with key water sanitation and hygiene indicators, by district, Global Trachoma Mapping Project, Zanzibar, 2015.

Zone (Island)	District	Prevalence of trachoma signs, % (95% CI)		Proportion of households, %
		TF in children 1–9 years	TT in people 15+ years	Using improved drinking water source	Drinking water source in yard or within 1km	With sanitation facilities (toilet/latrine)
Unguja	Kaskazini A	2.7 (2.7–4.1)	0.01 (0.00–0.04)	69.9	89.3	56.6
Pemba	Micheweni	11.4 (6.6–16.5)	0.21 (0.08–0.39)	50.2	92.4	31.4

CI, confidence interval; TF, trachomatous inflammation–follicular; TT, trachomatous trichiasis.