Evidence map›Paper›PMID 29420607›Full record

ArticlePloS one2018

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, Elisabeth B Persson, Annelie Inghilesi Larsson, Marcelo Rivano Fischer, Björn Gerdle

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Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

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37citing papers in PubMed
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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

Who cites it

37 citing papers in PubMed.

  1. Article
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  5. Pain Phenotypes in Endometriosis: A Population-Based Study Using Latent Class Analysis.BJOG : an international journal of obstetrics and gynaecology · 2025
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  6. Identifying and characterizing clinical subgroups in individuals with endometriosis.Frontiers in pain research (Lausanne, Switzerland) · 2025
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  7. Putting pain into words: the psalms of lament as an aid for the alexithymic.Frontiers in pain research (Lausanne, Switzerland) · 2025
    Article
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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Emmanuel BäckrydPain and Rehabilitation Centre, and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.ORCID 0000-0003-4420-418X
Elisabeth B PerssonLund University, Department of Health Sciences, Lund, Sweden.
Annelie Inghilesi LarssonQuality Stat AB, Umeå, Sweden.
Marcelo Rivano FischerLund University, Department of Health Sciences, Lund, Sweden.
Björn GerdlePain and Rehabilitation Centre, and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo subgroup chronic pain patients using psychometric data and regress the variables most responsible for subgroup discrimination.

designCross-sectional, registry-based study. SETTING AND SUBJECTS: Chronic pain patients assessed at a multidisciplinary pain centre between 2008 and 2015.

methodsData from the Swedish quality registry for pain rehabilitation (SQRP) were retrieved and analysed by principal component analysis, hierarchical clustering analysis, and partial least squares-discriminant analysis.

resultsFour subgroups were identified. Group 1 was characterized by low "psychological strain", the best relative situation concerning pain characteristics (intensity and spreading), the lowest frequency of fibromyalgia, as well as by a slightly older age. Group 2 was characterized by high "psychological strain" and by the most negative situation with respect to pain characteristics (intensity and spreading). Group 3 was characterized by high "social distress", the longest pain durations, and a statistically higher frequency of females. The frequency of three neuropathic pain conditions was generally lower in this group. Group 4 was characterized by high psychological strain, low "social distress", and high pain intensity.

conclusionsThe identification of these four clusters of chronic pain patients could be useful for the development of personalized rehabilitation programs. For example, the identification of a subgroup characterized mainly by high perceived "social distress" raises the question of how to best design interventions for such patients. Differentiating between clinically important subgroups and comparing how these subgroups respond to interventions is arguably an important area for further research.

Indexed as

PsychometricsChronic PainCluster AnalysisDiscriminant AnalysisFemaleHumansMalePain ManagementPatient SatisfactionSweden

Identifiers

PMID29420607
PMCPMC5805304

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.