Association of tea drinking during pregnancy and preterm delivery or abortion: A meta-analysis
10.19485/j.cnki.issn2096-5087.2020.01.009
- VernacularTitle:孕期饮茶与早产、流产风险关联的Meta分析
- Author:
ZHANG Wanting
1
;
WANG Shihui
;
YANG Yibei
;
MAO Yingying
;
YE Ding
Author Information
1. School of Public Health , Zhejiang Chinese Medical University
- Publication Type:Journal Article
- Keywords:
pregnancy tea drinking preterm delivery abortion meta-analysis
- From:
Journal of Preventive Medicine
2020;32(1):37-41
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the association between tea drinking during pregnancy and the risk of preterm delivery and abortion,so as to provide basis for prevention of preterm delivery and abortion.
Methods:The databases of CNKI,Wanfang,VIP,CBMdisc,PubMed and Web of Science were searched for cohort studies and case-control studies into the association between tea consumption during pregnancy and preterm delivery or abortion until June 30 th,2019. Relative risk（RR）or odds ratio（OR）were used as indicators for the meta-analysis.
Results:A total of 1 099 articles were retrieved,14 of them were included in the quantitative study,including 9 cohort studies with 18 295 exposed and 71 890 unexposed individuals and 5 case-control studies with 1 351 cases and 3 059 controls. There was no statistically significant association between tea drinking during pregnancy and preterm birth or abortion（OR/RR=1.08,95%CI：0.99-1.18）. The linear regression model of random effect showed that with the increase of tea consumption during pregnancy,the risk of premature delivery and abortion did not change significantly（OR/RR=1.05，95%CI：0.99-1.11）. There was no publication bias found in Begg's test and Egger's test.
Conclusion:Drinking tea during pregnancy is not associated with preterm delivery and abortion.
