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Table 4 Comparison of adverse pregnancy outcomes between subjects with optimal GWG determined by the Asian BMI cut-offs# and those with optimal GWG determined by the IOM BMI cut-offs#

From: Gestational weight gain in Chinese women -- results from a retrospective cohort in Changsha, China

Outcomes

Subjects with optimal GWG according to Asian BMI category#

Subjects with optimal GWG according to IOM BMI category#

Crude OR (95%CI)

Adjusted OR (95%CI)a

N

%

N

%

Preterm

 Yes

434

7.10

450

6.99

1.02(0.89, 1.17)

1.03(0.90, 1.19)

 No

5676

 

5988

 

Reference

 

Birth weight

 LBW

351

5.74

370

5.75

0.99(0.85, 1.15)

1.01(0.87, 1.17)

 Macrosomia

242

3.96

319

4.95

0.79(0.67, 094)

0.79(0.67, 0.94)

 Normal

5517

 

5749

   

Birth weight by gestational age

 SGA

520

8.51

530

8.23

1.02(0.90, 1.16)

1.02(0.90, 1.16)

 LGA

530

8.67

641

9.96

0.86(0.76, 0.97)

0.86(0.76, 0.98)

 Normal

5060

 

5267

   

PIH

 Yes

165

2.70

190

2.95

0.91(0.74, 1.13)

0.93(0.75, 1.15)

 No

5945

 

6248

   

GDM

 Yes

57

0.93

57

0.89

1.05(0.73, 1.52)

1.06(0.73, 1.53)

 No

6053

 

6381

   
  1. aAdjustment covariates are maternal age, parity, education and smoking during pregnancy
  2. #Optimal gestational weight gain determined by pre-pregnancy BMI category is listed in Table 1