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Association between prenatal environmental tobacco smoke exposure and preterm birth: A systematic review and meta‐analysis

Tongtong Fu, Han-Xiao Luo, Zhidiaeva Na, Chun-ling Xia, Ling Fan

Acta Obstetricia et Gynecologica Scandinavica, 2025

4 citations

Abstract

The purpose of this systematic review and meta‐analysis is to evaluate the global risk of preterm birth associated with passive smoking. Specifically, the study aims to examine whether passive smoking continues to impact preterm birth rates, with particular attention to the potential effects following the implementation of stricter smoking bans in recent years.

How strong is the evidence?

Evidence Hub reads this as a systematic review. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.

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