Dengue vector management using insecticide treated materials and targeted interventions on productive breeding-sites in Guatemala

Table 2 Change in PPI (as a proxy measure for vector densities) from baseline to 6 weeks and 18-month surveys, respectively

	Mean change intervention clusters (95% CI)	Mean change control clusters (95% CI)	P-value
After 1^st intervention	0.84 (0.61 to 1.07)	0.79 (0.45 to 1.14)	0.80
After 2^nd intervention	−0.01(-0.26 to 0.24)	0.52 (-0.01 to 1.05)	0.05

P-value given for difference in change between intervention and control clusters.

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