‘Fit for school’ – a school-based water, sanitation and hygiene programme to improve child health: Results from a longitudinal study in Cambodia, Indonesia and Lao PDR

Table 6 Factors that are significantly associated with DMFT increment in children in Cambodia, Indonesia and Lao PDR (pooled)^a

	Model for oral health status (n = 1395)
	β (95% CI)	P
	DMFT increment
FIT Programme
No (48.9%)	reference
Yes (51.1%)	−0.15 (−0.29; −0.01)	0.036
Child-level variables
Age (years)	−0.12 (−0.23; −0.01)	0.04
Number of permanent teeth at baseline	0.04 (0.02; 0.06)	<0.001
School-level variables
Geographical location
Rural (35.4%)	reference
Urban (64.6%)	0.39 (0.22; 0.57)	<0.001
Random effects
Country level variance (95% CI)	0.10 (0.02; 0.56)	ICC (%): 10.1
School level variance (95% CI)	0.04 (0.02; 0.08)	ICC (%): 14.0

Variables considered in the initial model: Child variables: FIT programme, age at follow-up, gender, number of siblings, number of permanent teeth at baseline, School variables: geographical location, number of enrolees at follow-up, number of water slots with water and soap, student to water slot ratio, percentage of clean and functional toilets
^aMultilevel mixed-effects linear regression
^b117 children excluded from analysis because of an overlapping intervention of the Japan International Cooperation Agency in Lao PDR

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