Table 1.

Main sources of numerator and denominator data used by SCORE studies to estimate MDA coverage

SCORE study	Type of MDA/population assessed	Source of numerator data	Source of denominator data
Côte d’Ivoire sustaining control	SBT (SAC)	Teacher records in year 1, when all treatment occurred in schools, and teacher and CDD treatment records in subsequent years	Year-by-year Ministry of Health reports of village-level total population. Twenty-six percent of the population of each village was assumed to be SAC
Kenya sustaining control	SBT (SAC)	Teacher treatment records	School enrollment
Kenya gaining control	SBT (SAC)	Teacher treatment records	School enrollment
	CWT	Years 1 and 2: CDD registries	Years 1 and 2: CDD census, updated regularly
		Years 3 and 4:	Years 3 and 4:
		• SAC: teacher treatment records and CDD registries	• SAC: School enrollment
		• Non-SAC: CDD registries	• Non-SAC: CDD census, updated regularly
Mozambique gaining control	SBT (SAC)	Teacher treatment records, non-enrolled children were encouraged to come to the school for treatment	2011 census. Thirty percent of the population of each village was assumed to be SAC
	CWT	SAC: teacher treatment records and CDD registries	2011 census
		Non-SAC: CDD registries
Niger	SBT (SAC)	Teacher treatment records	Annual village-level data provided by the Ministry of Health
		SAC: teacher treatment records and CDD registries
	CWT	Non-SAC: CDD registries
Tanzania gaining control	SBT (SAC)	Teacher treatment records	Census information collected from the village executive official’s records
	CWT	Years 1 and 2: CDD registries
		Years 3–4:
		SAC: teacher treatment records
		Non-SAC: CDD registries

CDD = community drug distributor; CWT = community-wide treatment; MDA = mass drug administration; SAC = school-age children; SBT = school-based treatment; SCORE = Schistosomiasis Consortium for Operational Research and Evaluation.