Validation of an Administrative Knee Osteoarthritis Severity Index in a Veterans Health Affairs Cohort [Big data]
Annals of Family Medicine
NOVEMBER 20, 2024
The first OA diagnosis in record must occur from 2009-2014 and index date is OA diagnosis date. The Osteoarthritis Severity Index (OASI) was developed to inform clinical trajectory of knee OA toward TKA and was previously created and validated in a nationally distributed, general population cohort of EHR data. Final sample size was 435,731.
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