Table 3 Association of BMI and IMH with fetal growth and SGA/LGA risk

Model 1

Normal weight

0

0

1

1

Overweight

0.26 (0.20, 0.32)

< 0.001

212.91 (192.16, 233.67)

< 0.001

0.44 (0.38, 0.50)

< 0.001

2.74 (2.33, 3.22)

< 0.001

Obese

0.39 (0.31, 0.46)

< 0.001

360.26 (334.52, 386.00)

< 0.001

0.26 (0.21, 0.33)

< 0.001

5.80 (4.88, 6.89)

< 0.001

Per-1 kg/m² increase

0.04 (0.03, 0.05)

< 0.001

39.45 (36.92, 41.98)

< 0.001

0.84 (0.82, 0.86)

< 0.001

1.18 (1.17, 1.20)

< 0.001

Euthyroid

0

0

1

1

IMH

0.01 (-0.11, 0.14)

0.839

43.54 (0.15, 86.93)

0.049

0.90 (0.65, 1.24)

0.516

1.41 (1.14, 1.76)

0.002

Model 2

Normal weight

0

0

1

1

Overweight

0.14 (0.09, 0.18)

< 0.001

167.01 (150.14, 183.88)

< 0.001

0.40 (0.35, 0.47)

< 0.001

2.67 (2.24, 3.17)

< 0.001

Obese

0.30 (0.24, 0.36)

< 0.001

323.96 (302.24, 345.68)

< 0.001

0.19 (0.15, 0.25)

< 0.001

5.88 (4.87, 7.11)

< 0.001

Per-1 kg/m² increase

0.04 (0.03, 0.04)

< 0.001

37.79 (35.63, 39.95)

< 0.001

0.81 (0.79, 0.83)

< 0.001

1.20 (1.18, 1.22)

< 0.001

Euthyroid

0

0

1

1

IMH

0.10 (-0.00, 0.19)

0.052

53.29 (18.89, 87.69)

0.002

0.79 (0.56, 1.11)

0.169

1.32 (1.05, 1.65)

0.019