Table 4 Odds ratios and 95 % confidence intervals from bivariable and multivariable logistic regression analysis predicting use of health professionals or media as the most important GWG source^a

Total

80

101

Maternal age

 ≤30 years

35 (43.7)

55 (54.5)

1.00

Ref

 31–35 years

23 (28.8)

27 (26.7)

0.75

0.37, 1.50

0.41

 ≥36 years

22 (27.5)

19 (18.8)

0.83

0.26, 1.16

0.12

Country of birth

 Australia

59 (73.8)

48 (47.5)

1.00

Ref

1.00

Ref

 Overseas

21 (26.2)

53(52.5)

3.10

1.65, 5.84

<0.01

3.20

1.76, 6.85

<0.01

Language

 English

58 (72.5)

60 (59.4)

1.00

Ref

 LOTE

22 (27.5)

41 (40.6)

1.80

0.96, 3.39

0.07

Education

 Secondary or less

9 (11.2)

6 (5.9)

1.00

Ref

 Trade/Certificate Diploma

17 (21.3)

28 (27.7)

2.47

0.75, 8.17

0.14

 Tertiary

54 (67.5)

67 (66.3)

1.73

0.88, 3.40

0.28

Main daily activity

 Working full time

35 (43.7)

52 (51.5)

0.69

0.31, 1.51

0.34

1.02

0.44, 2.37

0.96

 Working part time

27 (33.8)

17 (16.8)

0.29

0.12, 0.72

0.01

0.40

0.16, 1.03

0.06

 Raising children

13 (16.3)

28 (27.7)

1.00

Ref

1.00

Ref

 Unemployed/studying

5 (6.2)

4 (4.0)

0.37

0.09, 1.62

0.19

0.34

0.07, 1.57

0.17

Household income

 <$51,999

12 (15.0)

17 (16.8)

1.00

Ref

 $52–77,999

11 (13.8)

17 (16.8)

1.10

0.38, 3.15

0.87

 $78–99,999

13 (16.3)

18 (17.8)

0.98

0.35, 2.73

0.97

 >$99,999

29 (36.2)

37 (12.9)

0.90

0.38, 2.12

0.82

 Did not answer

15 (18.7)

12 (11.8)

0.56

0.20, 1.63

0.29

Parity

 0

49 (61.3)

70 (69.3)

1.43

0.77, 2.65

0.26

 ≥1

31 (38.7)

31 (30.7)

1.00

Ref

BMI kg/m²

 Underweight (<18.5 kg/m²)

1 (1.3)

3 (3.0)

2.11

0.21, 21.02

0.52

 Healthy weight (18.5-24.9 kg/m²)

43 (53.8)

61 (60.4)

1.00

Ref

 Overweight (25–29.9 kg/m²)

13 (16.2)

21 (20.8)

1.14

0.51, 2.52

0.75

 Obese (30–34.9 kg/m²)

23 (28.7)

16 (15.8)

0.49

0.23, 1.04

0.06