PROM | Internal consistency | Test-retest reliability | Measurement error | Content validity | Structural validity | Hypothesis testing | Criterion validity | Responsiveness |
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 |  |  |  |  |  | Discriminant validity | Concurrent validity |  |
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NIDDK-QA | ? | ? | NR | NR | NR | ? | ? | NR |
PSC PROM | + | + | NR | + | + | NR | NR | NR |
- Level of evidence (COSMIN): +++ or --- ‘Strong’ Consistent findings in multiple studies of good methodological quality, ++ or – ‘Moderate’ Consistent findings in multiple studies is fair, + or – ‘Limited’ One study of fair methodological quality, +/− ‘Conflicting’ Findings are conflicting,? ‘Unknown’ Studies of poor methodological quality. NIDDK-QA National institute of diabetes and digestive and kidney disease liver transplant questionnaire, PSC PRO Primary Sclerosing Cholangitis Patient Reported Outcome