Table 4

Subgroup analysis by province: effect of the intervention on time spent collecting water, quantity of water collected, quality of water source and quality of sanitation facility

Outcome	Province	Control		Intervention		ITT	95% CI
Outcome	Province	N	Mean	N	Mean	ITT	95% CI
Time to collect water (min)	Kongo Central	72	50	80	33	−19	(−51 to 13)
	Kasai	172	47	196	90	43	(13 to 72)
	Kasai Central	260	92	64	21	−61	(−95 to −26)
	South Kivu	228	70	240	59	−10	(−35 to 16)
Improved water source	Kongo Central	72	0.51	80	0.79	0.24	(−0.06 to 0.53)
	Kasai	172	0.24	196	0.73	0.49	(0.32 to 0.67)
	Kasai Central	260	0.15	64	0.83	0.75	(0.55 to 0.96)
	South Kivu	228	0.86	240	0.93	0.06	(−0.04 to 0.17)
Quantity of water collected (liters)	Kongo Central	72	23	80	23	0	(−14 to 15)
	Kasai	172	31	196	37	5	(−2 to 12)
	Kasai Central	260	32	64	18	−13	(−23 to −4)
	South Kivu	228	52	240	58	7	(−7 to 21)
Improved sanitation facility	Kongo Central	72	0.15	80	0.84	0.68	(0.52 to 0.85)
	Kasai	172	0.24	196	0.38	0.14	(−0.05 to 0.33)
	Kasai Central	260	0.05	64	0.80	0.74	(0.58 to 0.90)
	South Kivu	228	0.29	240	0.30	0.01	(−0.11 to 0.12)

The model includes controls for the number of villages per cluster. There were 121 clusters in total. Time spent collecting water and total quantity of water collected were Winsorised at the 99th percentile.
ITT, intention-to-treat effect estimate.