Chronic pain patients can be classified into four groups: Clustering-based discriminant analysis of psychometric data from 4665 patients referred to a multidisciplinary pain centre (a SQRP study)

• Emmanuel Bäckryd ,

  Roles Conceptualization, Formal analysis, Methodology, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: emmanuel.backryd@regionostergotland.se

  Affiliation Pain and Rehabilitation Centre, and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden

  http://orcid.org/0000-0003-4420-418X

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• Elisabeth B. Persson,

  Roles Conceptualization, Writing – review & editing

  Affiliations Lund University, Department of Health Sciences, Lund, Sweden, Department of Pain Rehabilitation Medicine, Skåne University Hospital, Lund, Sweden

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• Annelie Inghilesi Larsson,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation Quality Stat AB, Umeå, Sweden

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• Marcelo Rivano Fischer,

  Roles Conceptualization, Writing – review & editing

  Affiliations Lund University, Department of Health Sciences, Lund, Sweden, Department of Pain Rehabilitation Medicine, Skåne University Hospital, Lund, Sweden

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• Björn Gerdle

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

  Affiliation Pain and Rehabilitation Centre, and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden

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