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Table 2 Adjusteda odds ratios of weaning at different time intervals according to maternal demographic variables

From: Breastfeeding and weaning practices among Hong Kong mothers: a prospective study

 

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

  1. a Adjusted for all variables shown
  2. b 1 USD = 7.78 HKD
  3. c 36 participants were excluded from the multivariable analyses because of missing family income data
  4. d 69 participants were excluded from the multivariable analyses because of missing data