The herbivore’s dilemma: Trends in and factors associated with heterosexual relationship status and interest in romantic relationships among young adults in Japan—Analysis of national surveys, 1987–2015

• Cyrus Ghaznavi,

  Roles Conceptualization, Data curation, Formal analysis, Methodology, Writing – original draft

  Affiliations Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America

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• Haruka Sakamoto,

  Roles Conceptualization, Data curation, Supervision, Writing – review & editing

  Affiliations Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, Department of Tropical Medicine and International Affairs, Tokyo Women’s Medical University, Tokyo, Japan

  https://orcid.org/0000-0001-9003-7402

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• Shuhei Nomura,

  Roles Methodology, Validation

  Affiliation Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

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• Anna Kubota,

  Roles Data curation

  Affiliation Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

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• Daisuke Yoneoka,

  Roles Methodology, Validation

  Affiliations Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, Division of Biostatistics and Bioinformatics, Graduate School of Public Health, St. Luke’s International University, Tokyo, Japan

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• Kenji Shibuya,

  Roles Supervision

  Affiliation Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

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• Peter Ueda

  Roles Data curation, Methodology, Supervision, Validation, Writing – review & editing

  * E-mail: peter.ueda@gmail.com

  Affiliations Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institute, Stockholm, Sweden

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