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BMC Public Health
Published in: BMC Public Health 1/2016

Open Access 01-12-2016 | Research article

Maternal tea consumption and the risk of preterm delivery in urban China: a birth cohort study

Authors: Lei Huang, Catherine Lerro, Tao Yang, Jing Li, Jie Qiu, Weitao Qiu, Xiaochun He, Hongmei Cui, Ling Lv, Ruifeng Xu, Xiaoying Xu, Huang Huang, Qing Liu, Yawei Zhang

Published in: BMC Public Health | Issue 1/2016

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Abstract

Background

Studies investigating the relationship between maternal tea drinking and risk of preterm birth have reached inconsistent results.

Methods

The present study analyzed data from a birth cohort study including 10,179 women who delivered a singleton live birth were conducted in Lanzhou, China between 2010 and 2012.

Results

Drinking tea (OR = 1.36, 95 % CI: 1.09–1.69), and specifically green (OR = 1.42, 95 % CI: 1.08–1.85) or scented tea (OR = 1.61, 95 % CI: 1.04–2.50), was associated with an increased risk of preterm birth. Drinking tea was associated with both moderate preterm (OR = 1.41, 95 % CI: 1.12–1.79) and spontaneous preterm birth (OR = 1.41, 95 % CI: 1.09–1.83). Risk of preterm birth increased with decreasing age of starting tea drinking (<20 years, OR = 1.60, 95 % CI: 1.17–2.20) and increasing duration (p for trend < 0.01). The relationship between tea drinking and preterm birth is modified by both maternal age (p < 0.05) and gestational weight gain (p < 0.05).

Conclusions

Despite conflicting findings in the previous literature, we saw a significant association with maternal tea drinking and risk of preterm birth in our cohort. More studies are needed both to confirm this finding and to elucidate the mechanism behind this association.
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Metadata
Title
Maternal tea consumption and the risk of preterm delivery in urban China: a birth cohort study
Authors
Lei Huang
Catherine Lerro
Tao Yang
Jing Li
Jie Qiu
Weitao Qiu
Xiaochun He
Hongmei Cui
Ling Lv
Ruifeng Xu
Xiaoying Xu
Huang Huang
Qing Liu
Yawei Zhang
Publication date
01-12-2016
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2016
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/s12889-016-3100-3

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