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Table 1 Maternal and neonatal characteristics for HBsAg status

From: Association between maternal hepatitis B virus carrier and gestational diabetes mellitus: a retrospective cohort analysis

 

HBsAg positive (N = 3039)

HBsAg negative (N = 36,500)

P value

Maternal characteristics

Age (years)

30.23 ± 4.60

29.53 ± 4.38

< 0.05

 < 35

2473 (81.4%)

31,460 (86.2%)

< 0.05

 ≥ 35

566 (18.6%)

5040 (13.8%)

0.12

Gravidity

2.08 ± 1.25

1.82 ± 1.07

< 0.05

Parity

0.50 ± 0.61

0.36 ± 0.51

< 0.05

Multipara

1695 (55.8%)

24,032 (65.8%)

0.24

Gestational age (weeks)

38.27 ± 2.19

38.55 ± 2.17

< 0.05

Pre-pregnancy weight (kg)

56.70 ± 8.91

56.33 ± 8.76

0.76

Pre-pregnancy body mass index (kg/m2)

22.31 ± 3.32

22.17 ± 3.55

0.56

Underweight (< 18.5)

168 (5.5%)

3725 (10.2%)

0.97

Normal weight (18.5 ~ 23.9)

2323 (76.4%)

22,517 (61.7%)

< 0.05

Overweight (24 ~ 27.9)

386 (12.7%)

8383 (23.0%)

0.10

Obesity (≥ 28)

162 (5.4%)

1875 (5.1%)

0.54

Smoking during pregnancy

21 (0.7%)

219 (0.6%)

0.75

Alcohol drinking during pregnancy

36 (1.2%)

547 (1.5%)

0.81

Neonatal characteristics

Birthweight (g)

3086.50 ± 557.18

3122.96 ± 531.07

0.06

Apgar score (1 min)

9.66 ± 1.25

9.70 ± 1.23

0.41

Apgar score (5 min)

9.84 ± 1.08

9.85 ± 1.08

0.25

Apgar score (10 min)

9.88 ± 1.03

9.87 ± 1.07

0.63

Male infants

1773 (58.3%)

16,712 (45.8%)

< 0.05