The Jiaxing Birth Cohort in China
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorZhejiang University
About this trial
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.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Pregnant women came to clinic visit at one of the local hospitals during pregnancy at Jiaxing area
Pregnant women were followed up during pregnancy and their children were born alive at local hospital or clinics
Disqualifiers
Those who did not want to participant
The infant was dead at the birth
Those pregnant mothers who dropped out during follow-up at pregnancy or moved out of the Jiaxing area
Trial population
Between 1999 and 2013, 363 416 pregnancies were followed from initial registration to the end of the pregnancy, with 25 003 children born to the above women having no further information (registration) after the birth. Therefore, a total of 338 413 live mother-child pairs registered at local clinics, and were enrolled in the Jiaxing Birth Cohort. Among the 338 413 children, there were 332 532 singletons, 2883 pairs of twins (n = 5766), 37 pairs of triplets (n= 111), and 1 pair of quadruplets (n = 4).
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
No intervention
Other intervention
Treatment groups
500,000 Participants
are divided into 1 treatment groupGroup A: Mother-child birth cohort1 intervention
Trial outcomes
Primary outcomes
1
overweight and obesity
BMI-z-score was calculated from height and weight. BMI-z-score\>1 was defined as overweight/obesity
Time frame
Up to 6-7 years old for these childrenSponsors and contacts
Click on the lead sponsor to view all of their trials.
Zhejiang University
Lead sponsor
Jiaxing Maternity and Child Health Care Hospital
Collaborator
Qingdao University
Collaborator
Westlake University
Collaborator
Source ClinicalTrials.gov