Table 2 The association of pre-pregnancy BMI and GWG with birth weight-related adverse outcomes by logistic regression analysis

Low birth weight

0.995 (0.965, 1.025)

0.726

0.920 (0.903, 0.939)

< 0.001

0.183

Macrosomia

1.170 (1.144, 1.197)

< 0.001

1.071 (1.054, 1.089)

< 0.001

0.764

SGA

0.886 (0.851, 0.923)

< 0.001

0.967 (0.945, 0.989)

0.004

0.230

LGA

1.125 (1.111, 1.141)

< 0.001

1.045 (1.036, 1.054)

< 0.001

0.192

Preterm birth

1.035 (1.009,1.062)

0.008

0.910 (0.895, 0.926)

< 0.001

0.888