Table 2

Adjusteda odds ratios of weaning at different time intervals according to maternal demographic variables

Breastfed for <1 month

(n = 1281)c

Breastfed for <3 months

(n = 765)d


Characteristic

aORa

95% CI

aORa

95% CI


Age, y

18-24

1.84

1.05 to 3.21

1.56

0.66 to 3.66

25-29

1.20

0.82 to 1.75

1.34

0.82 to 2.19

30-34

1.17

0.85 to 1.62

0.86

0.57 to 1.30

≥35

1

--

1

--

Parity

Primiparous

1.52

0.92 to 2.51

1.11

0.53 to 2.32

Multiparous

1

--

1

--

Maternal Education

Primary

0.91

0.41 to 2.02

0.55

0.19 to 1.64

Compulsory secondary

0.76

0.54 to 1.08

1.05

0.64 to 1.73

Upper secondary

1

--

1

--

University degree

0.36

0.27 to 0.50

0.82

0.53 to 1.27

Post-graduate degree

0.44

0.21 to 0.90

0.69

0.26 to 1.80

Monthly Family income (HKD)b

< $10,000

0.79

0.42 to 1.50

0.55

0.23 to 1.30

$10,000-14,999

0.77

0.46 to 1.29

0.68

0.33 to 1.39

$15,000-$19,999

0.89

0.53 to 1.47

0.63

0.29 to 1.34

$20,000-$24,999

1

--

1

--

$25,000-$29,999

0.76

0.46 to 1.26

0.73

0.35 to 1.52

=> $30,000

0.82

0.54 to 1.23

0.77

0.43 to 1.40

Length of residence in Hong Kong

< 5 years

1

--

1

--

≥ 5 years

2.56

1.50 to 4.38

0.83

0.46 to 1.48

Mother planning to exclusively breastfeed

No

1

--

1

--

Yes

0.66

0.50 to 0.86

0.94

0.63 to 1.41

Was mother breastfed

No

1

--

1

--

Yes

0.74

0.57 to 0.95

0.84

0.59 to 1.20

Previous breastfeeding experience

No

1

--

1

--

Yes

0.36

0.22 to 0.61

0.90

0.43 to 1.87

Husband feeding preference

Breastfeeding

0.71

0.51 to 0.98

1.04

0.66 to 1.64

No preference

1

--

1

--

Infant formula or mixed

1.28

0.87 to 1.89

2.39

1.31 to 4.34

Emergency caesarean section

No

1

--

1

--

Yes

1.37

0.93 to 2.02

1.42

0.81 to 2.51

Return to work post-partum

No

1

--

1

--

Yes

1.75

1.25 to 2.46

2.06

1.33 to 3.18

% of breastfeeding at 1 month

Exclusive breastfeeding

--

--

1

--

High partial breastfeeding

--

--

2.00

1.31 to 3.05

Medium partial breastfeeding

--

--

5.25

3.36 to 8.20

Low partial breastfeeding

--

--

13.8

5.70 to 33.63

% of breastfeeds given at breast

100%

--

--

1

--

50 to <100%

--

--

0.78

0.47 to 1.30

<50%

--

--

1.54

0.90 to 2.63


a Adjusted for all variables shown

b 1 USD = 7.78 HKD

c 36 participants were excluded from the multivariable analyses because of missing family income data

d 69 participants were excluded from the multivariable analyses because of missing data

Tarrant et al. BMC Pregnancy and Childbirth 2010 10:27   doi:10.1186/1471-2393-10-27

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