Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China

• Changfei Deng ,

  Contributed equally to this work with: Changfei Deng, Li Dai

  Roles Formal analysis, Writing – original draft

  Affiliations National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China, Chinese Evidence-based Medicine Center, West China Hospital, Sichuan University, Chengdu, China

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• Li Dai ,

  Contributed equally to this work with: Changfei Deng, Li Dai

  Roles Conceptualization, Data curation, Writing – review & editing

  Affiliations National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China

  http://orcid.org/0000-0001-6116-8024

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• Ling Yi,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Xiaohong Li,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Kui Deng,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Yi Mu,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Ke Wang,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Jing Tao,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Qi Li,

  Roles Data curation

  Affiliation National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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• Liangzhi Xu

  Roles Formal analysis, Writing – review & editing

  * E-mail: xuliangzhi@scu.edu.cn

  Affiliations Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China, Chinese Evidence-based Medicine Center, West China Hospital, Sichuan University, Chengdu, China

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