Effects of maternal smoking on body size and proportions at birth: a register-based cohort study of 1.4 million births.

ABSTRACT:

Objectives

The aim of our work was to analyse the effect of maternal smoking on body size and body proportions of newborns when the mother had smoked only during the first trimester, in comparison with continued smoking after the first trimester. Furthermore, we have evaluated how growth restriction associated with maternal smoking contributes to changes in body proportions.

Design

Register-based cohort study SETTING: Maternal Exposure (MATEX) cohort identified from the Finnish Medical Birth Register.

Participants

Singleton births without congenital anomalies and missing data (1.38 million) from 1 January 1991 to 31 December 2016.

Methods

Logistic regression was used to quantify the effect of maternal smoking, stratified by the maternal smoking status.

Outco

SUBMITTER: Rumrich I 

PROVIDER: S-EPMC7044904 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature