Effectiveness of a new breastfeeding counselling intervention on breastfeeding prevalence, infant growth velocity and postpartum weight loss in overweight women: a randomized controlled trial

Table 3 Primary outcomes comparisons between IC and CG

Variables	Overall	IG	CG	PR/difference	95% CI	p value
EBF prevalence at 4 months (n = 65; IG = 29; CG = 36)
Yes	35 (53.8)	24 (82.8)	11 (30.6)	2.7	1.6, 4.5	< 0.001**
No	30 (46.2)	5 (17.2)	25 (69.4)
	Overall (n = 65)	IG (n = 29)	CG (n = 36)	PR/difference	95% CI	p value
Infant change in WLZ (mean, SD)
Change in WLZ from 0 to 4mo	0.69 (± 0.7)	0.75 (± 1.3)	0.65 (± 1.7)	0.1	-0.6, 0.8	0.76
Change in LAZ from 0 to 4mo	0.25 (± 0.9)	0.4 (± 0.9)	0.1 (± 1.0)	0.22	-0.3, 0.7	0.36
Maternal weight loss
1st wk pp to 4 months in kg (mean, SD)	3.1 (± 5.0)	1.9 (± 4.7)	4.2 (± 5.1)	-2.2	-0.2, 4.8	0.07
1st wk pp to 4 months in % (mean, SD)	4.03 (± 6.6)	2.5 (± 6.4)	5.4 (± 6.5)	-2.9	-0.38, 6.2	0.08

Abbreviations: IG, intervention group; CG, control group; EBF, exclusive breastfeeding; WLZ, weight for length Z-Score; LAZ, length for age Z-Score; PR, prevalence ratio.
* Statistical significance at the level of < 0.05.
Group comparisons were performed with Chi2-test for categorical variables and for continuous variables with t test as all continuous variables were normally distributed.

ISSN: 1746-4358