Does the 6-minute walk test in hospitalized COPD patients exclusively correlate with lung function parameters or should psychological factors also be taken into account?

• Michèle Borgmann ,

  Contributed equally to this work with: Michèle Borgmann, Martina Ivanda

  Roles Data curation, Formal analysis, Methodology, Project administration, Validation, Writing – original draft

  Affiliations Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland, Lungen- und Atmungsstiftung Bern, Bern, Switzerland

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• Martina Ivanda ,

  Contributed equally to this work with: Michèle Borgmann, Martina Ivanda

  Roles Data curation, Investigation, Project administration, Resources

  Affiliation MediClin Rose Clinic, Horn-Bad Meinberg, Germany

  ⨯
• Yalda Hadizamani,

  Roles Writing – original draft

  Affiliations Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland, Lungen- und Atmungsstiftung Bern, Bern, Switzerland

  http://orcid.org/0000-0002-6285-4912

  ⨯
• Markus Mohaupt,

  Roles Writing – review & editing

  Affiliation Internal Medicine, Sonnenhofspital Bern, Bern, Switzerland

  ⨯
• Robert Bals,

  Roles Writing – review & editing

  Affiliation Internal Medicine V—Pneumology, Allergology, Respiratory and Environmental Medicine, Faculty of Medicine, Saarland University, Homburg/Saar, Germany

  ⨯
• Rudolf Lucas,

  Roles Writing – review & editing

  Affiliations Lungen- und Atmungsstiftung Bern, Bern, Switzerland, Division of Pulmonary Medicine, Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA, United States of America

  ⨯
• Jürg Hamacher ,

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

  * E-mail: hamacher@greenmail.ch

  ¶‡ These authors also contributed equally to this work.

  Affiliations Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland, Lungen- und Atmungsstiftung Bern, Bern, Switzerland

  ⨯
• Volker Köllner

  Roles Conceptualization, Methodology, Project administration, Supervision

  ¶‡ These authors also contributed equally to this work.

  Affiliations Department of Behavioral Therapy and Psychosomatic Medicine, Rehabilitation Center Seehof, Federal German Pension Agency, Teltow, Germany, Department of Psychosomatic Medicine, Psychosomatic Rehabilitation Research Group, Center for Internal Medicine and Dermatology, Charité—Universitätsmedizin, Berlin, Germany

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