Table 3 Proportion and odds ratio (OR) with 95% confidence interval (CI) for mothers who did not initiate exclusive breastfeeding (EBF) at 1 month (N = 1508)

Maternal age

1.05 (1.03–1.08)

<0.001

1.06

1.03

1.08

<0.001

Prepregnancy BMI, kg/m2

0.442

0.941

 <18.5

0.90 (0.69–1.18)

1.01

0.77

1.33

 18.5–24.9

1

Nulliparity

1.66 (1.31–2.11)

<0.001

1.73

1.34

2.24

<0.001

Caesarean section

2.13 (1.61–2.83)

<0.001

1.66

1.22

2.26

0.001

Pregnancy induced hypertension

1.96 (1.16– 3.31)

0.012

1.29

0.74

2.27

0.373

Gestational week at delivery

0.85 (0.77–0.95)

0.002

0.84

0.75

0.94

0.002

postpartum obstetrical hemorrhage >500 ml

1.34 (1.07–1.68)

0.011

1.01

0.77

1.31

0.973

Hemoglobin level

<0.001

0.025

 <9

1.85 (1.31–2.62)

1.63

1.10

2.42

 9–10.9

1.42 (1.11–1.82)

1.35

1.04

1.75

 11≤

1

Birthweight of infant <2500 g

2.39 (1.49–3.85)

<0.001

1.63

0.97

2.74

0.063

Immediate separation after delivery

1.64 (1.08–2.48)

0.020

1.44

0.93

2.22

0.100