Skip to main content

Table 3 ORs (95% CIs) for adverse pregnancy outcomes according to hemoglobin (Hb) levels at the third trimester

From: High hemoglobin level is a risk factor for maternal and fetal outcomes of pregnancy in Chinese women: A retrospective cohort study

 

Hb levels (g/L)

< 110

110–119

120–129

> 130

PTB

 Case/N

29/392

37/698

25/609

17/212

 Model 1

1.43 (0.86, 2.36)

1

0.77 (0.46, 1.29)

1.56 (0.86, 2.83)

 Model 2

1.51 (0.91, 2.51)

1

0.79 (0.47, 1.34)

1.64 (0.89, 3.01)

LBW

 Case/N

16/392

22/698

15/609

6/212

 Model 1

1.31 (0.68, 2.52)

1

0.78 (0.40, 1.51)

2.01 (0.99, 4.07)

 Model 2

1.40 (0.72, 2.72)

1

0.82 (0.42, 1.60)

2.20 (1.07, 4.51)

SGA

 Case/N

18/392

29/698

23/609

16/212

 Model 1

1.11 (0.61, 2.03)

1

0.91 (0.52, 1.58)

1.88 (1.01, 3.54)

 Model 2

1.11 (0.60, 2.03)

1

0.94 (0.53, 1.65)

2.00 (1.05, 3.80)

  1. Model 1: without adjustment
  2. Model 2: adjustment for age, BMI, education, conception method, parity, history of miscarriage and GDM
  3. Abbreviations: PTB preterm birth, LBW low-birth-weight infants, SGA small-for-gestational-age infants