Assessment of Depressive Symptoms During Inpatient Rehabilitation for Spinal Cord Injury: Is There an Underlying Somatic Factor When Using the PHQ?

James S. Krause, Charles Bombardier, Rickey E. Carter

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Objective: To test the hypothesis that a 2-factor solution, including a somatic factor, best accounts for the response pattern to the Patient Health Questionnaire-9 (PHQ-9) during inpatient rehabilitation after spinal cord injury (SCI). Research Design: 568 adults with traumatic SCI were administered the PHQ-9 during inpatient rehabilitation. The PHQ-9 was developed to identify depressive disorders based on DSM-IV criteria. Results: Maximum likelihood confirmatory factor analysis was used to compare unidimensional and alternative 2-factor models. The results suggested that the 2-factor solution with 3 somatic items (sleep disturbance, poor energy, appetite change) was a better solution than either a unidimensional model or 2-factor model that included psychomotor retardation as a fourth somatic item. The root mean square error of approximation with 3 somatic items fell within the acceptable range of less than .08 (.073). The 2 factors were highly correlated (.76) but within the acceptable range (less than .80). Conclusions: There may be 2 underlying factors with the PHQ-9, including a somatic factor, when measuring depressive symptoms during inpatient rehabilitation for SCI.

Original languageEnglish (US)
Pages (from-to)513-520
Number of pages8
JournalRehabilitation Psychology
Volume53
Issue number4
DOIs
StatePublished - Nov 2008
Externally publishedYes

Fingerprint

Spinal Cord Injuries
Inpatients
Rehabilitation
Depression
Health
Appetite
Depressive Disorder
Diagnostic and Statistical Manual of Mental Disorders
Statistical Factor Analysis
Sleep
Research Design
Surveys and Questionnaires

Keywords

  • depression
  • disability
  • psychosocial
  • rehabilitation
  • spinal cord injury

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Clinical Psychology
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

Cite this

Assessment of Depressive Symptoms During Inpatient Rehabilitation for Spinal Cord Injury : Is There an Underlying Somatic Factor When Using the PHQ? / Krause, James S.; Bombardier, Charles; Carter, Rickey E.

In: Rehabilitation Psychology, Vol. 53, No. 4, 11.2008, p. 513-520.

Research output: Contribution to journalArticle

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