The prevalence of PDF has varied between studies from 20% to 86% depending on how PDF was defined and ascertained (A). The proportion of patients reporting TIRD of various lengths has also varied between studies, with as many as 22.8% reporting needing >12 hours to recover from an HD treatment (B).
*In these studies, patients were asked to report on 5-point Likert scales the duration, frequency, and intensity of fatigue. The patient was considered to have PDF if the average of these was ≥4 points.
Abbreviations: HD, hemodialysis; PDF, post-dialysis fatigue; TIRD, time to recovery from dialysis