Table 2. Association between characteristics of villages and program related factors and PELF success to control infection prevalence.

Factor	Villages where PELF succeeded(N = 12)	Villages where PELF failed(N = 15)	Univariate Analysis		Multivariate Analysis
			OR (95% CI)	P value*	OR (95% CI)	P value*
Demographic data
average age <20 yr old	3 (25.0)	6 (40.0)	0.5 (0.09–2.64)	0.41
sex, male-female rate >0.50	7 (58.3)	7 (46.7)	1.60 (0,34–7.40)	0.54
Epidemiologic data
Low endemicity of infection	10 (83.3)	3 (20.0)	20.0 (2.77–144.31)	0.003	19.26 (1.12–331.82)	0.04
Low migration from other endemic areas	2 (16.7)	10 (66.7)	0.1 (0.02–0.64)	0.015	0.57 (0.03–11.46)	0.72
Low vector density	8 (66.7)	2 (13.3)	13.0 (1.92–87.99)	0.009	11.58 (0.68–197.0)	0.09
Operational data
High treatment coverage	7 (58.3)	8 (53.3)	1.22 (0,27–5.67)	0.79	0.23 (0.01–11.28)	0.46
Optimal vectorial control	7 (58.3)	1 (6.7)	19.60 (1.91–201.62)	0.01	18.00 (0.36–894.6)	0.14

OR, odds ratio. PELF, Program for Elimination of Lymphatic Filariasis.

*A P value ,0.05 was considered to be statistically significant.