Table 3.

 Maternal satisfaction and social support outcomes

Scale and group	Valid responses	Missing	Interclass correlation coefficient	Median (interquartile range)	P value
Maternal breastfeeding evaluation scale25
Intervention	773	72	0*	118 (104-130)	0.59†
Control	498	36		119 (105-129)
Duke-UNC functional social support scale26
Intervention	822	23	0.003	4.25 (3.63-4.75)	0.96‡
Control	517	17		4.25 (3.63-4.75)

Higher scores represent higher perceived levels of satisfaction (maximum score 150) and social support (maximum score 5).

*Truncated to zero.

†Linear regression adjusted for clustering.

‡Poisson regression adjusted for clustering.