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Oswestry Disability Index: Is Telephone Administration Valid?
Christopher T Martin1, Alexandra K Yaszemski2, Charles G T Ledonio3
1Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN.
The Iowa Orthopaedic Journal
|June 25, 2020
Summary
Telephonic administration of the Oswestry Disability Index (ODI) is a reliable and convenient method for collecting patient outcomes data. This approach demonstrates excellent test-retest reliability comparable to traditional in-person assessments.
Area of Science:
- Spinal conditions research
- Patient-reported outcome measures
- Telehealth validation
Background:
- The Oswestry Disability Index (ODI) is a key patient-reported outcome measure for spinal conditions.
- Traditional face-to-face ODI administration is costly and time-consuming.
- High patient dropout rates in clinical follow-up necessitate alternative data collection methods.
Purpose of the Study:
- To validate telephonic administration of the ODI against face-to-face administration.
- To assess the reliability of telephone-based ODI collection for spinal condition outcomes.
Main Methods:
- Recruited a sample of individuals with and without back pain.
- Administered the ODI face-to-face, followed by a telephone retest 24 hours later.
- Calculated intraclass correlation coefficient (ICC) for test-retest reliability.
Main Results:
- 22 participants completed both administration methods.
- Mean ODI score difference was 2% (±3), with a range of 0% to 12%.
- Achieved an overall ICC of 0.98 (95% CI: 0.96, 0.99), indicating near-perfect test-retest reliability.
Conclusions:
- Telephone administration of the ODI shows excellent test-retest reliability.
- This method offers a convenient and reliable alternative for capturing patient outcomes.
- Telephonic ODI administration is scientifically valid for outcomes projects.
