Association of China's universal two child policy with changes in births and birth related health factors: national, descriptive comparative study.

ABSTRACT:

Objective

To measure the association of China's universal two child policy, announced in October 2015, with changes in births and health related birth characteristics.

Design

National, descriptive before-and-after comparative study.

Setting

Every county in 28 of 31 provinces of mainland China.

Participants

Births included in two national databases: 67 786 749 births from county level monthly aggregated data between January 2014 and December 2017; and 31 786 279 deliveries from individual level delivery information records between January 2015 and December 2017.

Main outcome measures

Monthly mean number of births and mean proportion of multiparous mothers and mothers aged 35 and over, preterm deliveries, and caesarean deliveries.

Results

The study

SUBMITTER: Li HT 

PROVIDER: S-EPMC6699592 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature