Table 4.

Multivariable model of ‘full breastfeeding’ at 6 months by growth chart type.

Chart	OR	95% CI	T Value	p Value
Univariate analysis
Chart A	1
Chart B	1.39	1.02–1.91	2.07	0.039
Multiple analysis-1 a
Chart A	1
Chart B	1.41	1.02–1.93	2.11	0.035
Multiple analysis-2 b
Chart A	1
Chart B	1.41	1.02–1.94	2.10	0.036

Notes: ^a Model 1: The covariates included are gender, premature delivery, birth weight and delivery way. ^b Model 2: The covariates included are gender, premature delivery, birth weight, delivery way, mother age, educational level and family income; Chart A represents a growth trajectory that is heavier than Chart B in the first six months of life. Random effect was adjusted in both Model 1 and Model 2 to allow for the use of six outpatient clinics for follow-up.