Table 2 Adjusted logistic regression estimates between breastfeeding practices and clinically significant postpartum depression and parent-child dysfunction at 6 months, 1 year and 2 years in the CHILD cohort study

Breastfeeding Mode at 3 Months

(reference: no breast milk)

Breast milk and formula

6 Months

1573

0.71 (0.42, 1.23)

--

Breast milk only (some expressed)

6 Months

0.53 (0.32, 0.90)*

--

Breast milk only (all direct)

6 Months

0.41 (0.23, 0.72)**

--

Breast milk and formula

1 Year

1594

1.07 (0.61, 1.90)

1 Year

1593

1.03 (0.62, 1.75)

Breast milk only (some expressed)

1 Year

0.81 (0.47, 1.43)

1 Year

0.77 (0.47, 1.31)

Breast milk only (all direct)

1 Year

0.60 (0.34, 1.10)^

1 Year

0.79 (0.47, 1.37)

Breast milk and formula

2 Year

1497

0.80 (0.47, 1.37)

2 Year

1503

1.18 (0.69, 2.06)

Breast milk only (some expressed)

2 Year

0.70 (0.42, 1.18)

2 Year

1.03 (0.62, 1.78)

Breast milk only (all direct)

2 Year

0.82 (0.49, 1.40)

2 Year

0.90 (0.52, 1.59)

Breastfeeding at 6 Months

(reference: no breastfeeding)

Partial Breastfeeding

6 Months

1598

0.80 (0.53, 1.22)

--

Exclusive Breastfeeding

6 Months

0.70 (0.40, 1.20)

--

Partial Breastfeeding

1 Year

1631

0.73 (0.48, 1.12)

1 Year

1630

0.87 (0.59, 1.29)

Exclusive Breastfeeding

1 Year

0.61 (0.35, 1.06)^

1 Year

0.72 (0.43, 1.19)

Partial Breastfeeding

2 Year

1532

0.86 (0.58, 1.27)

2 Year

1538

1.00 (0.68, 1.48)

Exclusive Breastfeeding

2 Year

0.76 (0.46, 1.26)

2 Year

0.76 (0.45, 1.27)

Breastfeeding at 12 Months

(reference: No)

Yes

6 Months

-

--

Yes

1 Year

1632

0.69 (0.48, 0.97)*

1 Year

1631

0.85 (0.62, 1.16)

Yes

2 Year

1536

0.97 (0.70, 1.33)

2 Year

1542

0.71 (0.52, 0.97)*

Breastfeeding at 24 Months

(reference: No)

Yes

6 Months

-

--

Yes

1 Year

-

1 Year

-

Yes

2 Year

1536

1.07 (0.65, 1.72)

2 Year

1542

0.57 (0.32, 0.96)*