Table 2 Adjusted ORs (95% CIs) for pregnancy outcomes by prepregnancy BMI and rate of GWG

 Case/Non-case

765/1022

2810/3196

582/379

115/58

890/1128

1131/1318

2250/2209

 Model 1

0.87 (0.78,0.97)

Reference

1.80 (1.56,2.08)

2.34 (1.69,3.24)

0.91 (0.81,1.03)

Reference

1.22 (1.10,1.35)

 Model 2

0.86 (0.77,0.97)

Reference

1.87 (1.62,2.16)

2.50 (1.80,3.47)

0.93 (0.82,1.05)

Reference

1.15 (1.04,1.28)

 Case/Non-case

176/1611

528/5478

92/869

17/155

203/1815

180/2269

430/4029

 Model 1

1.16 (0.97,1.40)

Reference

1.12 (0.88,1.42)

1.18 (0.70,1.98)

1.34 (1.08,1.65)

Reference

1.44 (1.20,1.73)

 Model 2

1.15 (0.96,1.39)

Reference

1.19 (0.94,1.52)

1.32 (0.79,2.23)

1.34 (1.08,1.66)

Reference

1.43 (1.19,1.72)

 Case/Non-case

161/1626

331/5675

50/911

12/160

187/1831

158/2291

209/4250

 Model 1

1.71 (1.40,2.09)

Reference

0.97 (0.71,1.32)

1.42 (0.77,2.59)

1.45 (1.16,1.82)

Reference

0.75 (0.61,0.93)

 Model 2

1.74 (1.42,2.13)

Reference

0.89 (0.65,1.21)

1.19 (0.65,2.19)

1.43 (1.15,1.79)

Reference

0.77 (0.62,0.96)

 Case/Non-case

117/1670

608/5398

156/805

40/132

133/1885

205/2244

583/3876

 Model 1

0.60 (0.49,0.74)

Reference

1.75 (1.44,2.13)

2.48 (1.71,3.60)

0.78 (0.62,0.97)

Reference

1.58 (1.33,1.87)

 Model 2

0.59 (0.48,0.72)

Reference

1.91 (1.57,2.33)

2.90 (1.99,4.23)

0.79 (0.62,0.99)

Reference

1.48 (1.24,1.75)