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 3 Pupa positive 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)
Water supply	No. households	No. (%) positive for pupae	No. households	No. (%) positive for pupae
Regular supply	2028	76 (4)	2031	135 (7)	0.5 (0.3–0.8); 30 (18–83)
Irregular supply	2015	148 (7)	2016	248 (12)	0.5 (0.3–0.9); 22 (12–77)
Association with regularity of water supply: OR (95% CI of OR); NNT (95% CI of NNT)
All sites	Intervention sites		Control sites
0.6 (0.5–0.8); 40 (28–84)	0.6 (0.4–0.8); 46 (26–134)		0.7 (0.5–0.9); 32 (19–85)

*Odds 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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