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Function and the patient with chronic low back pain

J Strong1, R Ashton, R G Large

  • 1Department of Occupational Therapy, University of Queensland, Brisbane, Australia.

The Clinical Journal of Pain
|September 1, 1994
PubMed
Summary
This summary is machine-generated.

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The Pain Disability Index (PDI) demonstrated higher internal consistency and sensitivity compared to the Oswestry Low Back Pain Disability Questionnaire (OLBPDQ) in assessing functional disability in chronic low back pain patients.

Area of Science:

  • Rehabilitation Medicine
  • Clinical Psychology
  • Pain Management

Background:

  • Functional disability is a key outcome in chronic low back pain.
  • Self-report measures are crucial for assessing functional disability.
  • The Pain Disability Index (PDI) and Oswestry Low Back Pain Disability Questionnaire (OLBPDQ) are commonly used.

Purpose of the Study:

  • To compare the reliability and validity of the PDI and OLBPDQ.
  • To evaluate their performance in patients with chronic low back pain.

Main Methods:

  • A descriptive ex-post facto study design was employed.
  • 100 patients with chronic low back pain were recruited from three metropolitan hospitals.
  • Both PDI and OLBPDQ were administered as part of a larger questionnaire battery.

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Main Results:

  • Both PDI (0.76) and OLBPDQ (0.71) showed acceptable internal consistency.
  • Concurrent validity was supported by a moderate correlation (r=0.63) between PDI and OLBPDQ.
  • PDI scores correlated with depression (r=0.42), while OLBPDQ scores showed a weaker correlation (r=0.39).
  • Only the PDI total score was sensitive to functional status variations.

Conclusions:

  • The PDI exhibits slightly higher internal consistency than the OLBPDQ.
  • The PDI is more sensitive in detecting functional status differences in chronic low back pain patients.
  • Findings support the PDI as a preferred measure for functional disability assessment.