Physical performance tasks were linked to the PROMIS physical function metric in patients undergoing hemodialysis
Objectives: To investigate whether a multi-item performance outcome measure, the physical performance test (PPT), can be calibrated to a common scale with patient-reported outcome measures, using the Patient-Reported Outcomes Measurement Information System (PROMIS) physical function (PF) metric. Study Design and Setting: We analyzed baseline data (N = 1,113) from the CONVINCE study, an internation