Informed community mobilization for dengue prevention in households with and without a regular water supply: Secondary analysis from the Camino Verde trial in Nicaragua

Table 2 House Index in households with regular and irregular water supply, in intervention and control sites, Managua, January 2013

Water supply	Intervention sites		Control sites		Impact of intervention OR (95% CI of OR); NNT (95% CI of NNT)^a
Water supply	No. households	No. (%) positive for larvae/pupae	No. households	No. (%) positive for larvae/pupae
Regular supply	2028	243 (12)	2031	396 (20)	0.7 (0.5鈥�1.0); 24 (12鈥�251)
Irregular supply	2015	322 (16)	2016	572 (28)	0.6 (0.4鈥�0.8); 11 (7鈥�36)
Association with regularity of water supply: OR (95% CI of OR); NNT (95% CI of NNT)^a
All sites	Intervention sites		Control sites		听
0.7 (0.6鈥�0.8); 19 (13鈥�35)	0.7 (0.6鈥�0.9); 29 (16鈥�103)		0.6 (0.5鈥�0.8); 14 (9鈥�24)		听

^aOdds Ratio and 95% confidence interval; number needed to treat and 95% confidence interval. Both OR and NNT from GLMM, with cluster as random effect. In addition to regularity of water supply or intervention status, observed presence of temephos remained in the final models

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