Associations of physical activity and screen time with suboptimal health status and sleep quality among Chinese college freshmen: A cross-sectional study

• Chenjin Ma,

  Roles Investigation, Methodology, Writing – original draft

  Affiliations Center for Applied Statistics and School of Statistics, Renmin University of China, Beijing, China, School of Public Health, Yale University, New Haven, Connecticut, United States of America

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• Long Zhou,

  Roles Investigation, Methodology, Writing – original draft

  Affiliation Center for Applied Statistics and School of Statistics, Renmin University of China, Beijing, China

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• Wangli Xu,

  Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

  Affiliation Center for Applied Statistics and School of Statistics, Renmin University of China, Beijing, China

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• Shuangge Ma,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation School of Public Health, Yale University, New Haven, Connecticut, United States of America

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• Yu Wang

  Roles Conceptualization, Methodology, Supervision, Writing – review & editing

  * E-mail: abyuer@sina.com

  Affiliation Center for Applied Statistics and School of Statistics, Renmin University of China, Beijing, China

  http://orcid.org/0000-0002-8009-9076

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