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Table 4 Methodological quality of each study per measurement property and PROM

From: Patient-reported outcome measures used in patients with primary sclerosing cholangitis: a systematic review

Author (Year) PROM Internal consistency Test-retest reliability Measurement error Content validity Structural validity Hypothesis testing Criterion validity Cross structural validity
   Discriminant validity Concurrent validity  
Kim (2000) NIDDK-QA Poor Poor NR NR NR Poor Poor NR
Gross (1999) NIDDK-QA Poor NR NR NR NR NR NR NR
Younossi, (2017) PSC PROM Fair Fair NR Excellent Fair NR NR NR
  1. NIDDK-QA National institute of diabetes and digestive and kidney disease liver transplant questionnaire; PSC PRO: Primary Sclerosing Cholangitis Patient Reported Outcome