Table 4 Odds ratios and adjusted odds ratios of asthma, rhinoconjunctivitis and eczema symptoms for birthweight, gestational age, and light-for-dates of the participating children.

From: Asthma, Rhinoconjunctivitis, Eczema, and the Association with Perinatal Anthropometric Factors in Vietnamese Children

Characteristics

N

Cases

%

Asthma symptoms crude OR (95% CI)

Asthma symptoms adjusted ORa (95% CI)

Cases

%

Rhinoconjuncti-vitis symptoms crude OR (95% CI)

Rhinoconjuncti-vitis symptoms adjusted ORa (95% CI)

Cases

%

Eczema symptoms crude OR (95% CI)

Eczema symptoms adjusted ORa (95% CI)

Birthweight

<2500 g

27

3

11.1

2.41 (0.70–8.23)

2.93 (0.83–10.40)

4

14.8

1.35 (0.46–3.97)

1.56 (0.52–4.69)

6

22.2

4.25 (1.67–10.85)

5.13 (1.93–13.62)

<= 2500 g

1175

58

4.9

1.00

1.00

134

11.4

1.00

1.00

74

6.3

1.00

1.00

Birthweight

<2500 g

27

3

11.1

2.42 (0.71–8.29)

2.95 (0.83–10.46)

4

14.8

1.33 (0.45–3.90)

1.55 (0.51–4.64)

6

22.2

4.44 (1.74–11.36)

5.31 (2.00–14.12)

2500–4000 g

1141

56

4.8

1.00

1.00

132

11.6

1.00

1.00

69

6.1

1.00

1.00

>4000 g

34

2

5.8

1.21 (0.28–5.18)

1.24 (0.28–5.38)

2

5.9

0.48 (0.11–2.02)

0.50 (0.11–2.15)

5

14.7

2.68 (1.01–7.14)

2.54 (0.92–6.98)

Gestational age

<37 weeks (preterm)

36

2

5.6

1.10 (0.26–4.70)

1.14 (0.26–4.97)

5

13.9

1.25 (0.48–3.28)

1.45 (0.54–3.90)

2

5.6

0.82 (0.19–3.48)

0.84 (0.20–3.63)

>= 37 weeks

1166

59

5.1

1.00

1.00

133

11.4

1.00

1.00

78

6.7

1.00

1.00

Light-for-dates

Light-for-dates

129

6

3.9

0.73 (0.29–1.86)

0.81 (0.31–2.08)

10

7.8

0.62 (0.32–1.21)

0.66 (0.33–1.30)

9

7.0

1.06 (0.52–2.17)

1.15 (0.55–2.40)

Appropriate/heavy-for-dates

1073

56

5.2

1.00

1.00

128

11.9

1.00

1.00

71

6.6

1.00

1.00

High catch-up in weight

High catch-up

120

7

5.8

1.18 (0.52–2.65)

1.25 (0.55–2.84)

15

12.5

1.11 (0.63–1.97)

1.09 (0.61–1.96)

7

6.8

0.86 (0.38–1.90)

0.83 (0.37–1.87)

Non high catch-up

1082

54

5.0

1.00

1.00

123

11.4

1.00

1.00

73

5.8

1.00

1.00

  1. OR, odds ratio; 95% CI, 95% confidence interval. aA model incorporated sex, one of anthropometric characteristics (Birthweight < 2500 g/ >= 2500 g, birthweight < 2500 g/ 2500–4000 g/ > 4000 g, preterm born, light-for-dates, or high catch-up in weight), maternal and paternal asthma and allergic disease history, maternal educational level, number of siblings, living in urban area, and environmental tobacco smoke exposure.
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