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Computerized adaptive testing of symptom severity : a registry-based study of 924 patients with trapeziometacarpal arthritis
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Kamran, Rakhshan, Rodrigues, Jeremy N., Dobbs, Thomas D., Wormald, Justin C. R., Trickett, Ryan W. and Harrison, Conrad J. (2022) Computerized adaptive testing of symptom severity : a registry-based study of 924 patients with trapeziometacarpal arthritis. Journal of Hand Surgery (European Volume) . 175319342210875. doi:10.1177/17531934221087572 (In Press)
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Official URL: https://doi.org/10.1177/17531934221087572
Abstract
We aimed to develop a computerized adaptive testing (CAT) version of the 11 item Patient Evaluation Measure (PEM), using an item response theory model. This model transformed the ordinal scores into ratio-interval scores. We obtained PEM responses from 924 patients with trapeziometacarpal osteoarthritis to build a CAT model and tested its performance on a simulated cohort of 1000 PEM response sets. The CAT achieved high precision (median standard error or measurement 0.26) and reduced the number of questions needed for accurate scoring from 11 to median two. The CAT scores and item-response-theory-based 15-item PEM scores were similar, and a Bland–Altman analysis demonstrated a mean score difference of 0.2 between the CAT and the full-length PEM scores on a scale from 0 to 100. We conclude that the CAT substantially reduced the burden of the PEM while also harnessing the validity of item response theory scoring.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software R Medicine > R Medicine (General) R Medicine > RA Public aspects of medicine R Medicine > RC Internal medicine |
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| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Clinical Trials Unit Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| SWORD Depositor: | Library Publications Router | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Osteoarthritis, Osteoarthritis -- Diagnosis -- Computer simulation, Outcome assessment (Medical care), Computer adaptive testing | |||||||||||||||
| Journal or Publication Title: | Journal of Hand Surgery (European Volume) | |||||||||||||||
| Publisher: | Sage Publications Ltd. | |||||||||||||||
| ISSN: | 1753-1934 | |||||||||||||||
| Official Date: | 22 March 2022 | |||||||||||||||
| Dates: |
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| Article Number: | 175319342210875 | |||||||||||||||
| DOI: | 10.1177/17531934221087572 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | In Press | |||||||||||||||
| Access rights to Published version: | Open Access | |||||||||||||||
| RIOXX Funder/Project Grant: |
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