Pediatric Quality of Life Inventory (PedsQL) PedsQL Multidimensional Fatigue Scale A generic symptom-specific instrument to measure fatigue across pediatric populations. Clinic patients Validation study in SCD Request inclusion into NCIT below "Pediatric Quality of Life Inventory". None Panepinto JA, Torres S, Bendo CB, McCavit TL, Dinu B, Sherman-Bien S, Bemrich-Stolz C, Varni JW (2014). PedsQL Multidimensional Fatigue Scale in sickle cell disease: feasibility, reliability, and validity. Pediatric Blood & Cancer, 61,171-177 Children 2 - 18 (child report ages 5 - 18 years; parent proxy report of children ages 2 - 18 years) Self; Proxy (Parent report) The 18-item PedsQL Multidimensional Fatigue Scale encompasses three domains: 1) General Fatigue, 2) Sleep/Rest Fatigue and 3) Cognitive Fatigue. The format, instructions, Likert response scale, and scoring method are identical to the PedsQL 4.0 Generic Core Scales [16], with higher scores indicating better HRQOL (lower fatigue symptoms). The instructions ask how much of a problem each item has been during the past one month.