Crosswalking the Patient-Reported Outcomes Measurement Information System Physical Function, Pain Interference, and Pain Intensity Scores to the Roland-Morris Disability Questionnaire and the Oswestry Disability Index.
Maria Orlando Edelen, Anthony Rodriguez, Patricia Herman and 1 others
PMID 33684368WHAT IT FOUND
PROMIS physical function and pain interference scores can be translated to and from ODI and Roland-Morris scores.
Pain intensity translations were weak. The equations are preliminary and meant for comparing scores across studies.
Key findings
01PROMIS physical function and pain interference scores were more strongly associated with ODI and RMDQ scores than PROMIS pain intensity was.
02Models using the ODI or RMDQ predicted PROMIS physical function and pain interference better than PROMIS pain intensity.
03The three PROMIS scores predicted ODI scores reasonably well, but pain intensity was not a significant predictor of RMDQ scores.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The equations are preliminary and need replication, especially in samples with a broader range of disability. The correlations were below 0.80, so the authors used linear regression rather than latent-variable equating. PROMIS pain intensity translated poorly from the ODI and RMDQ, and pain intensity was not a significant predictor of RMDQ scores. The PROMIS 1 Wave 2 sample used computer adaptive tests, while the other samples used PROMIS-29 short forms, so administration differed. The samples were largely non-Hispanic White and had different age and sex distributions, which may limit generalisability. The analysis used baseline data only, so it does not show how the translated scores perform over time or after treatment.
Declared interests
The authors declared no conflicts of interest. The article is categorized as receiving NIH extramural research support.
The easy way to misread this
Do not read these equations as proof that PROMIS and the ODI or Roland-Morris measure the same thing. The correlations were below 0.80, pain intensity models were weak, and the authors describe the equations as preliminary and call for further studies.