The China-Anhui Birth Cohort Study (C-ABCS)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

16766 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-11-30

Study Completion Date

2015-01-31

Brief Summary

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The China-Anhui Birth Cohort Study (C-ABCS) was set up to examine the delayed, cumulative and interactive effects of maternal environmental exposures on birth outcomes and children's development. The C-ABCS recruited pregnant women from six major cities of Anhui province, China, between November 2008 and October 2010. A range of data (including demographic, obstetric, occupational, nutritional and psychosocial factors) were collected by both interviews and laboratory tests. In each trimester, women's blood samples were drawn, and pregnancy complications were abstracted from physician's medical records. By the end of 2011, birth outcomes/birth defects were observed/identified by clinicians within 12 months after the delivery of 11 421 singleton live births of six cities and those outcomes among the remaining 2033 live births are still being observed. In addition, 4668 children from Ma'anshan city will be further followed up during the pre-school period till they reach adolescence to obtain the data on familial environmental exposures as well as children's physical, psychological, behavioural and sexual development. The interview data and information on laboratory examinations are available on request from archives in the Anhui Provincial Key Laboratory of Population Health \& Aristogenics.

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Detailed Description

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Conditions

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Environmental Exposures Other Pregnancy With Abortive Outcome Birth Defects Children Development

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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No intervention

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Having been lived in local city at least 6 months;
2. Establishing maternal card in the hospital for the first time;
3. Gestational week ≤ 16 weeks;
4. Willing to have antenatal checkups and childbirth in the hospital where they establish maternal cards.

Exclusion Criteria

1. Women who have abnormities in speaking and can not complete the survey by themselves;
2. Women with mental disorders;
3. Women who plan to leave local places.

Minimum Eligible Age

17 Years

Maximum Eligible Age

49 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes