Trends in the incidence and mortality of multiple births by socioeconomic deprivation and maternal age in England: population-based cohort study.

ABSTRACT:

Objective

To investigate temporal trends in multiple birth rates and associated stillbirth and neonatal mortality by socioeconomic deprivation and maternal age in England.

Design

Population cohort study.

Setting

England.

Participants

All live births and stillbirths (1 January 1997 to 31 December 2008).

Main outcome measures

Multiple maternity rate, stillbirth and neonatal death rate by year of birth, decile of socioeconomic deprivation and maternal age.

Results

The overall rate of multiple maternities increased over time (+0.64% per annum 95% CI (0.47% to 0.81%)) with an increase in twin maternities (+0.85% per annum 95% CI (0.67% to 1.0%)) but a large decrease in triplet and higher order maternities (-8.32% per annum 95% CI (-9.39% to -7.25%)). M

SUBMITTER: Smith LK 

PROVIDER: S-EPMC3987713 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature