Table 4.

Coefficients from ancillary analysis of efficiency of Chagas disease vector control campaign, Arequipa, Peru, 2015

	Minutes to spray house, among treated households ß (95% CI)
Study arm (ref: control)
Advanced planning	1.08 (−1.02 to 3.17)
Block leader recruitment	3.91 (1.85 to 5.97)
Contingent group lottery	3.51 (1.38 to 5.64)
Cycle 1 household status (ref: closed)
Cycle 1: sprayed, positive	6.85 (1.86 to 11.84)
Cycle 1: sprayed, negative	−1.49 (−4.81 to 1.82)
Cycle 1: uninhabited	−13.47 (−22.07 to 4.86)
Cycle 1: refused	−11.79 (−25.79 to 2.22)
Cycle 1: public lot	−21.27 (−39.41 to 3.13)
Cycle 1: vacant lot	−0.37 (−4.78 to 4.04)
Constant	52.55 (49.13 to 55.98)
n (households)	4010

Coefficients are from a linear regression of the duration of the household treatment (insecticide application) in minutes during Cycle 2 of the Chagas disease vector control campaign in Arequipa, Peru. Regression models are estimated using generalised estimating equations. CIs are adjusted for clustering of households. Unadjusted mean number of minutes to spray house in control arm=51.4 min.