Table 3. Results of STH assessment during LF TAS and school-based survey in Centre Nord in Burkina Faso in 2014.

Survey group	No of children examined	No of children positive	Estimated prevalence (%) (95% CI)	Critical cut-off value for <10% prevalence for cluster sampling [30]	STH prevalence according to the cut-off value
6–7 years old	351	2	0.6 (0.2–2.1)	1–20	2% to <10%
10–14 years old	345	7	2.0 (1.0–4.1)	1–20	2% to <10%
10–14 years old (school-based)	250	0	0 (0–1.5)	-	-