Contraceptive Use and the Risk of Ectopic Pregnancy: A Multi-Center Case-Control Study

Cheng Li; Wei-Hong Zhao; Chun-Xia Meng; Hua Ping; Guo-Juan Qin; Shu-Jun Cao; Xiaowei Xi; Qian Zhu; Xiao-Cui Li; Jian Zhang

doi:10.1371/journal.pone.0115031

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Open Access

Peer-reviewed

Research Article

Contraceptive Use and the Risk of Ectopic Pregnancy: A Multi-Center Case-Control Study

Cheng Li ,

Contributed equally to this work with: Cheng Li, Wei-Hong Zhao

Affiliation Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200030, China
⨯
Wei-Hong Zhao ,

Contributed equally to this work with: Cheng Li, Wei-Hong Zhao

Affiliation Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200030, China
⨯
Chun-Xia Meng,

Affiliation Department of Obstetrics, Gynecology and Women’s Health, School of Medicine, University of Missouri-Columbia, Columbia, MO, 65212, United States of America
⨯
Hua Ping,

Affiliation Department of Obstetrics and Gynecology, Songjiang Maternity and Child Health Hospital, Shanghai, 201620, China
⨯
Guo-Juan Qin,

Affiliation Department of Obstetrics and Gynecology, Minhang Central Hospital, Shanghai, 201100, China
⨯
Shu-Jun Cao,

Affiliation Department of Obstetrics and Gynecology, Songjiang Central Hospital, Shanghai, 201600, China
⨯
Xiaowei Xi,

Affiliation Department of Obstetrics and Gynecology, Shanghai First People’s Hospital, Shanghai Jiaotong University, Shanghai, 200080, China
⨯
Qian Zhu,

Affiliation Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200030, China
⨯
Xiao-Cui Li ,

* E-mail: zhangjian_ipmch@sjtu.edu.cn (JZ); Sisi1113@163.com (XCL)

Affiliation Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200030, China
⨯
Jian Zhang

* E-mail: zhangjian_ipmch@sjtu.edu.cn (JZ); Sisi1113@163.com (XCL)

Affiliation Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200030, China
⨯

Contraceptive Use and the Risk of Ectopic Pregnancy: A Multi-Center Case-Control Study

Cheng Li,
Wei-Hong Zhao,
Chun-Xia Meng,
Hua Ping,
Guo-Juan Qin,
Shu-Jun Cao,
Xiaowei Xi,
Qian Zhu,
Xiao-Cui Li,
Jian Zhang

Published: December 10, 2014
https://doi.org/10.1371/journal.pone.0115031

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