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Table 1 Maternal demographic characteristics. Data are expressed as the means ± SDs or n (%)

From: Prevalence, risk factors and associated adverse pregnancy outcomes of anaemia in Chinese pregnant women: a multicentre retrospective study

Variables

Anaemic

Non-anaemic

Total

Pregnant women

10,199 (23.5%)

33,204 (76.5%)

43,403 (100.0%)

Maternal age (years)

29.50 ± 4.46

29.80 ± 4.19

29.73 ± 4.25

Gravidity

1.94 ± 1.20

1.85 ± 1.13

1.87 ± 1.15

Parity

0.78 ± 0.73

0.59 ± 0.67

0.64 ± 0.69

Pre-pregnancy BMI (kg/m2)

20.57 ± 4.39

21.31 ± 4.41

21.13 ± 4.42

Pre-pregnancy height (cm)

54.00 ± 8.38

56.42 ± 9.18

55.85 ± 9.06

Pre-pregnancy weight (kg)

160.48 ± 4.96

161.56 ± 4.92

161.30 ± 4.95