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PROMIS physical function measures seen as reliable, valid for improving patient outcomes
Patient-reported outcomes measurement information system physical function measures were reliable, valid and responsive in tracking and improving patient health outcomes, according to results.
Researchers collected patient-reported outcomes measurement information system (PROMIS) and non-PROMIS forms among 424 patients with isolated upper extremity fractures at any time one measure and among 132 patients at a second time measure. Main outcome measures were the reliability, validity and responsiveness of the upper extremity computer adaptive test (UE-CAT) and the eight-item physical function short form (PF-SG8a).
Results showed PROMIS PF measures had excellent reliability at the first timepoint, with an average marginal reliability of 0.90 for the UE-CAT and 0.96 for the PF-SF8a. Researchers found strong support of the convergent validity between PROMIS and non-PROMIS measures at both time points, as well as convergence of change scores between the first and second measurement times.
According to results, side of injury was never a significant predictor of response to treatment and fracture severity was nonsignificant for the UE-CAT. However, fracture severity remained a significant predictor for response to treatment, researchers noted, although this was driven by patients with severe fractures. Researchers also noted higher scores indicative of better function with the PF-SF8a vs. the UE-CAT. – by Casey Tingle
Disclosure: This study was funded through a contract with the AO Foundation.