Table 3 The comparison between proposed optimal GWG and IOM recommended GWG grouped by prepregnancy BMI.

From: Investigation of optimal gestational weight gain for twin pregnancy in Southwest China: a retrospective study

 

Chinese BMI standard(kg/m2)

Optimal total GWG(kg)

IOM BMI standard(kg/m2)

IOM recommended GWG(kg)

IOM recommended weekly GWG(kg/w)

Underweight

 < 18.5

16–21.5

 < 18.5

–

–

Normal weight

18.5 ≤ BMI < 24

15–21.1

18.5 ≤ BMI < 25

16.8–24.5

0.45–0.66

Overweight

24 ≤ BMI < 28

13–20

25 ≤ BMI < 30

14.1–22.7

0.38–0.61

Obese

 ≥ 28

9–22

 ≥ 30

11.3–19.1

0.31–0.52

  1. BMI body mass index, GWG gestational weight gain, IOM Institute of Medicine.
Back to article page