Table 3. Primary Outcome: Mean Electoral Ward Area-Level 6- to 8-Week Breastfeeding Prevalence.

Analysis	Mean Area-Level, % (95% CI)		Mean Percentage Point Difference (95% CI)	P Valuea
	Control Group (n = 46)	Intervention Group (n = 46)
Primary analysis
6- to 8-wk breastfeeding prevalenceb	31.7 (29.4 to 34.0)	37.9 (35.0 to 40.8)	6.2 (2.4 to 10.0)	.002
Analysis by quarter
Quarter 1: Apr-Jun 15	31.4 (27.5 to 35.3)	34.1 (29.7 to 38.4)	2.7 (−3.3 to 8.6)	.38
Quarter 2: Jul-Sep 15	33.3 (28.6 to 38.0)	37.3 (32.4 to 42.3)	4.0 (−2.9 to 10.9)	.25
Quarter 3: Oct-Dec 15	32.1 (26.6 to 37.5)	38.2 (33.8 to 42.6)	6.2 (−1.0 to 13.3)	.09
Quarter 4: Jan-Mar 16	29.3 (24.7 to 33.8)	41.3 (37.1 to 45.5)	12.0 (5.8 to 18.3)	<.001

^a Independent-samples t test.

^b For the primary outcome, only infants whose feeding status was known were included in the denominator for the breastfeeding prevalence calculation.