Table 1.

Respondent and household characteristics by intervention group

Variable	Control group		Intervention group		Difference	t-test p value
	N/(clusters)	Mean/(SE)	N/(clusters)	Mean/(SE)	(1)–(2)	(1)–(2)
Household has improved roof	732	0.276	580	0.372	−0.096	0.559
	(71)	(0.054)	(50)	(0.075)
Household has improved wall	732	0.007	580	0.009	−0.002	0.770
	(71)	(0.003)	(50)	(0.003)
Household has improved floor	732	0.046	580	0.050	−0.004	0.768
	(71)	(0.011)	(50)	(0.020)
Household size	732	6.958	580	6.809	0.149	0.153
	(71)	(0.178)	(50)	(0.197)
Respondent identifies as catholic	732	0.190	580	0.219	−0.029	0.338
	(71)	(0.019)	(50)	(0.022)
Respondent identifies as protestant	732	0.342	580	0.376	−0.034	0.1598
	(71)	(0.049)	(50)	(0.051)
Respondent identifies with other religion	732	0.372	580	0.288	0.084	0.367
	(71)	(0.044)	(50)	(0.055)
Respondent age	732	37.046	580	37.093	−0.047	0.941
	(71)	(0.517)	(50)	(0.867)
Respondent has completed primary school	732	0.295	580	0.310	−0.015	0.579
	(71)	(0.029)	(50)	(0.036)
Respondent has completed secondary school	732	0.044	580	0.053	−0.010	0.823
	(71)	(0.007)	(50)	(0.012)
Respondent is married or cohabitating	732	0.844	580	0.843	0.001	0.576
	(71)	(0.013)	(50)	(0.016)

The value displayed for t-tests are the differences in the means across the groups, with controls for randomization strata. Standard errors are clustered by geographic cluster (group of villages). Improved roof=1 if roof is finished roofing (ie, metal, wood, calamine/cement fibre ceramic tiles, cement or roofing shingles); improved walls=1 if walls are ‘finished walls’; improved floor=1 if floor is ‘finished floor’.