The Jiaxing Birth Cohort in China
The Jiaxing Birth Cohort in China
The Jiaxing Birth Cohort (JBC) is the largest prospective cohort study to explore prenatal
 risk factors, early life feeding practice and growth pattern/ adiposity in Chinese
 children.Between 1999 and 2013, 338 413 mother-child pairs were recruited in Jiaxing area in
 south-east China.Children of the recruited women were followed up at 1-2, 3, 6, 9 and 12
 months of age, and subsequently followed up every 6 months to 36 months of age (toddler
 stage), and every year to 6-7 years of age before they went to school (pre-school stage).
 Follow-up rate was 70.8% at the toddler stage and 68.9% at the pre-school stage up to June
 2013.
Inclusion Criteria:

 1. Pregnant women came to clinic visit at one of the local hospitals during pregnancy at
 Jiaxing area

 2. Pregnant women were followed up during pregnancy and their children were born alive at
 local hospital or clinics

 Exclusion Criteria:

 1. Those who did not want to participant

 2. The infant was dead at the birth

 3. Those pregnant mothers who dropped out during follow-up at pregnancy or moved out of
 the Jiaxing area