Factors associated with follow-up difficulty in longitudinal studies involving community-dwelling older adults

• Hisashi Kawai ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: hkawai@tmig.or.jp

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

  http://orcid.org/0000-0003-3015-6041

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• Manami Ejiri,

  Roles Data curation, Investigation, Methodology, Writing – review & editing

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

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• Harukazu Tsuruta,

  Roles Formal analysis, Investigation, Methodology, Supervision, Writing – review & editing

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

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• Yukie Masui,

  Roles Data curation, Methodology

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

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• Yutaka Watanabe,

  Roles Data curation, Investigation

  Affiliations Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan, Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University, Sapporo, Japan

  http://orcid.org/0000-0002-4983-2399

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• Hirohiko Hirano,

  Roles Funding acquisition, Investigation

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

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• Yoshinori Fujiwara,

  Roles Investigation

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

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• Kazushige Ihara,

  Roles Investigation

  Affiliation Faculty of Medicine, Hirosaki University, Hirosaki city, Aomori, Japan

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• Masashi Tanaka,

  Roles Investigation, Supervision, Writing – original draft

  Affiliation National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan

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• Shuichi Obuchi

  Roles Conceptualization, Funding acquisition, Investigation, Project administration, Supervision

  Affiliation Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan

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