The impact of potentially inappropriate medication on the development of health care costs and its moderation by the number of prescribed substances. Results of a retrospective matched cohort study

• Dirk Heider ,

  Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Validation, Writing – original draft

  * E-mail: d.heider@uke.de

  Affiliation Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

  http://orcid.org/0000-0001-9682-8168

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• Herbert Matschinger,

  Roles Conceptualization, Formal analysis, Investigation, Methodology

  Affiliation Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

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• Andreas D. Meid,

  Roles Validation, Writing – review & editing

  Affiliation Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Heidelberg, Germany

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• Renate Quinzler,

  Roles Conceptualization

  Affiliation Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Heidelberg, Germany

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• Jürgen-Bernhard Adler,

  Roles Data curation

  Affiliation AOK research institute (WIdO), Berlin, Germany

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• Christian Günster,

  Roles Data curation, Writing – review & editing

  Affiliation AOK research institute (WIdO), Berlin, Germany

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• Walter E. Haefeli,

  Roles Conceptualization, Writing – review & editing

  Affiliation Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Heidelberg, Germany

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• Hans-Helmut König

  Roles Conceptualization, Supervision

  Affiliation Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

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