Chinese Pregnant Woman Cohort Study

Purpose To determine the relationship between maternal lifestyle and obstetric and neonatal outcomes.

Methods and analysis This is a multicentre, prospective, cohort study including more than 5000 participants in 24 hospitals in 12 provinces from July 2017 to July 2018 in China. Maternal lifestyle (environmental exposures, diet, physical activity, sleeping, psychology and economics) and metabolic status will be collected by the electronic self-administered questionnaire at the first, second and third trimesters and 42 days postpartum, respectively. Obstetric and neonatal outcomes and metabolic status recorded by a clinical research coordinator. Descriptive statistics will be used to investigate the outcomes of maternal and newborn across China. Logistical regression and covariance analysis will be used to determine the relationship between maternal lifestyle and obstetric and neonatal outcomes. SAS statistical software will be used for data analysis.

Ethics and dissemination Permission for the study was obtained from Chinese Academy of Medical Sciences and Peking Union Medical College. Ethics approval was obtained from the Ethics Review Committee at Department of Scientific Research, Peking Union Medical College Hospital, Beijing, China. The results will be published in peer-reviewed journals or disseminated through conference presentations.

Study Overview

• Status: Unknown
• Conditions: Pregnancy; Pregnancy Related; Infant; Pregnancy Disease; Risk Factor

• Study Type: Observational
• Enrollment (Anticipated): 5000

Contacts and Locations

Study Locations

• China
  • Beijing
    • Beijing, Beijing, China, 100730
      • Peking Union Medical College Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years and older (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Female

• Sampling Method: Probability Sample

Study Population

More than 5000 pregnant women will be recruited from July 2017 to July 2018 during their routine antenatal check at the first trimester. Maternal lifestyle (environmental exposure, diet, nutrient, physical activity, sleep quality, psychology and economics) are collected by electronic self-administered questionnaire at the first, second, third and 42 days postpartum. A clinical research coordinator will record the metabolic status (pre-pregnancy BMI and GWG) and obstetric and neonatal outcomes will be recorded.

Description

The participants were pregnant women who satisfied the following criteria: (1) ≥16 years old; (2) at 5-12 weeks' gestational; (3) able to complete the questionnaire; (4) permanent residents in the study locations; and (5) willing to sign the consent form.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
1; This cohort study only set up a group. We will follow up and observe the pregnant women's lifestyle during pregnancy in order to find the risk factors of adverse pregnancy outcomes. We will divide the participants into more than one group according to the variables（e.g. age, smoking status, drinking status, sleep pattern .etc.）

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
preterm birth	The doctors will record the delivery time	2017.10.1-2019.3.1
birth weight	The doctors will record the birth weight	2017.10.1-2019.3.1
birth defects	The doctors will record the birth defects	2017.10.1-2019.3.1

Collaborators and Investigators

• Sponsor: Peking Union Medical College Hospital
• Collaborators: Peking Union Medical College
• Investigators: Principal Investigator: Yu Jiang, doctor, School of Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College

Publications and helpful links

General Publications

• Lyu T, Chen Y, Zhan Y, Shi Y, Yue H, Liu X, Meng Y, Jing A, Qu Y, Ma H, Huang P, Man D, Li X, Wu H, Zhao J, Shan G, Jiang Y. Cohort profile: the Chinese Pregnant Women Cohort Study and Offspring Follow-up (CPWCSaOF). BMJ Open. 2021 Mar 23;11(3):e044933. doi: 10.1136/bmjopen-2020-044933.
• Sun Y, Shen Z, Zhan Y, Wang Y, Ma S, Zhang S, Liu J, Wu S, Feng Y, Chen Y, Cai S, Shi Y, Ma L, Jiang Y. Investigation of optimal gestational weight gain based on the occurrence of adverse pregnancy outcomes for Chinese women: a prospective cohort study. Reprod Biol Endocrinol. 2021 Aug 30;19(1):130. doi: 10.1186/s12958-021-00797-y.
• Sun Y, Shen Z, Zhan Y, Wang Y, Ma S, Zhang S, Liu J, Wu S, Feng Y, Chen Y, Cai S, Shi Y, Ma L, Jiang Y. Effects of pre-pregnancy body mass index and gestational weight gain on maternal and infant complications. BMC Pregnancy Childbirth. 2020 Jul 6;20(1):390. doi: 10.1186/s12884-020-03071-y.

Study record dates

Study Major Dates

• Study Start (Actual): July 1, 2017
• Primary Completion (Actual): July 1, 2018
• Study Completion (Anticipated): December 1, 2019

Study Registration Dates

• First Submitted: January 11, 2018
• First Submitted That Met QC Criteria: January 11, 2018
• First Posted (Actual): January 18, 2018

Study Record Updates

• Last Update Posted (Actual): September 4, 2018
• Last Update Submitted That Met QC Criteria: August 30, 2018
• Last Verified: August 1, 2018

More Information

Terms related to this study

• Other Study ID Numbers: PUMC-CPWCS

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No