title: The value of pain coping constructs in subcategorising back pain patients according to risk of poor outcome.
abstract: BACKGROUND
  Subcategorising patients with chronic low back pain (CLBP) could improve patient outcomes and facilitate prioritisation of treatment resources.
  
  
  OBJECTIVE
  This study aimed to develop a subcategorising method for individuals with CLBP using the Coping Strategies Questionnaire 24 (CSQ24) and to investigate the methods potential validity.
  
  
  METHODS
  196 patients were recruited from a physiotherapy outpatients department. All participants completed a battery of questionnaires before and after treatment including the CSQ24 and a measure of pain, disability, and mood. At discharge participants also completed a global subjective outcomes scale consisting of a 6-point Likert scale. All participants received usual physiotherapy.
  
  
  RESULTS
  Cut-off values for the CSQ24 were calculated using triangulation of the findings from three different statistical methods. Cut-off values were identified for the Catastrophising and Cognitive Coping subscales of the CSQ24. Participants were categorised into low, medium, and high risk of a poor outcome. The cut-off values for these were ≥21 on Cognitive Coping and ≤9 on Catastrophising for low risk and ≤15 on Cognitive Coping for high risk, with all other patients being classified as being at moderate risk.
  
  
  CONCLUSIONS
  Further validation is required before this approach can be recommended for clinical practice.
authors.affiliation: The School of Health and Social Care, Teesside University, Tees Valley, Middlesbrough TS1 3BA, UK ; South Tees Hospital Foundation Trust, Marton Rd, Middlesbrough TS4 3BW, UK.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Harland
authors.forename: Cormac Gerard
authors.initials: CG
authors.lastname: Ryan
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D058443:Catastrophization; D003071:Cognition; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000503:physiopathology / Q000523:psychology* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D026741:Physical Therapy Modalities; D012307:Risk Factors; D011795:Surveys and Questionnaires; D016896:Treatment Outcome