CHOIR

The Collaborative Health Outcomes Information Registry (CHOIR) is an open source, open standard, and highly flexible platform for a learning healthcare system to optimize care and advance real-world research discovery and innovation.

CHOIR incorporates classic testing-theory-based measures, such as the Pain Catastrophizing Scale, and item-response-theory based measures, such as the NIH Patient-Reported Outcomes Measurement Information System (PROMIS). PROMIS measures are normed and validated for the US population, providing a comparative metric across groups, and administered via computer adaptive testing (CAT). Outside the US, the PROMIS International initiative disseminates PROMIS domains worldwide via translation/cultural adaptation, calibration, and validation. CHOIR is flexible, in that each institution can tailor patient-reported-outcome measures to the site, clinic, and condition(s).

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