The Oswestry Disability Index and 12-Item Short Form Health Survey Physical Component Scores Are Not Affected by Recall Bias in Posterior Lumbar Spine Surgery Patients: A Prospective Study Using Data From Fitness Trackers.

ABSTRACT:

Objective

To assess the effects of recall bias on prospectively collected patient-reported outcome (PRO) measures after lumbar laminectomy by analyzing correlations between PROs and step counts in measurement windows preceding PRO measurement.

Methods

Responses to the 12-item Short Form Health Survey (SF-12) and the Oswestry Disability Index (ODI) were collected postoperatively from 22 patients. Accelerometers recorded daily step counts. Median and maximum step counts were calculated for windows (1 day, 3 days, 1 week, and 2 weeks) preceding PRO measurement. Spearman rank correlation coefficients between PROs and step counts were calculated.

Results

Median and maximum step counts from 1- and 2-week windows more consistently correlated with SF-12 Physical Component Sco

SUBMITTER: Tiao J 

PROVIDER: S-EPMC11981322 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature