The China birth cohort study (CBCS).

ABSTRACT: The China birth cohort study (CBCS) is a prospective longitudinal, mega-cohort study and the first national-based birth cohort study, aiming to establish a birth cohort covering representative geographical areas of the whole of China to investigate risk factors for birth defects and develop strategies for their reduction. Pregnant women who are of Chinese nationality, are 6-13⁺⁶ weeks of gestation, plan to attend the routine antenatal examination and deliver in the study site, and give their informed, written consent are eligible to participate in this study. All participants are followed-up through an in-person interview at 20-23⁺⁶ weeks and again at 28-33⁺⁶ weeks of gestation, and at delivery, respectively. CBCS has been divided into three phases from 20t

SUBMITTER: Yue W 

PROVIDER: S-EPMC9110496 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature