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Table 2 Adjusted OR for birth weight classified by pre-pregnancy BMI, GWG and GWGrate

From: Association among pre-pregnancy body mass index, gestational weight gain and neonatal birth weight: a prospective cohort study in China

Items

SGA

LGA

OR

95%CI

OR

95%CI

Pre-BMI a

 Underweight

1.853 c

1.316–2.610

0.575 d

0.383–0.864

 Normal weight

Ref.

 

Ref.

 

 Overweight/Obesity

0.576

0.328–1.010

1.996 c

1.540–2.588

GWG b

 Insufficient

1.850 c

1.309–2.616

0.601 d

0.399–0.903

 adequate

Ref.

 

Ref.

 

 Excessive

0.628

0.351–1.125

1.676 c

1.279–2.194

GWGrate b

 Insufficient

1.524 d

1.068–2.174

0.846

0.600–1.193

 adequate

Ref.

 

Ref.

 

 Excessive

0.668 d

0.458–0.973

1.673 c

1.274–2.196

  1. a Adjusted for maternal age, occupation, gravidity, parity; b Adjusted for maternal age, occupation, gravidity, parity, GDM, gestational hypertension and pre-BMI; c P < 0.001; d P < 0.05