age
Age (four categories)
Ethnicity
Educational level
Pre-pregnancy BMI
International standard for BMI before pregnancy (four categories)
Pre-pregnancy BMI (four categories) Chinese standard
Family wealth index
Parity
Cold/fever before or during pregnancy
Drinking before or during pregnancy
Passive smoke before or during pregnancy
Fetal sex
Birth weight
Low birth weight
macrosomia
Macrosomia classification
Current GDM
Weight gain during pregnancy