“…In our systematic search, we found 17 studies and one systematic review that assessed the psychometric properties of seven different measures for fatigue in CAYA cancer survivors [ 37 , 58 , 61 , 74 – 88 ]. Ten studies measured fatigue in CAYA cancer patients [ 74 , 76 – 80 , 82 , 83 , 86 , 87 ], five in CAYA cancer survivors [ 37 , 61 , 81 , 84 , 88 ], and three in a mixed patient and survivor population [ 58 , 75 , 85 ]. Five studies and the systematic review investigated the Fatigue Scales (Fatigue Scale-Child, Fatigue Scale-Adolescent, and proxy versions) [ 58 , 74 – 78 ], four studies the PROMIS Pediatric Fatigue Measures [ 82 – 85 ], three studies and the systematic review the PedsQL Multidimensional Fatigue Scale (Peds QL MFS) [ 74 , 79 – 81 ], and five studies other measures (Fatigue Thermometer [ 37 ], Multidimensional Fatigue Inventory [ 88 ] Turkish Scale for the Assessment of Fatigue in Pediatric Oncology Patients [ 86 , 87 ], and 12-item fatigue questionnaire [ 61 ]).…”