Cognitive and Psychosocial Outcome in Children and Adolescents Treated for Extracranial Malignant Solid Tumors and Lymphomas in the RISK‐N Study

OBJECTIVE: Recent studies show evidence of cognitive and psychosocial impairments and reduced quality of life (QoL) in adult survivors of childhood extracranial solid tumors and lymphomas, but limited research has addressed these issues in pediatric populations. STUDY DESIGN: The French RISK-N prospective study (2014-2021) evaluated 278 survivors of extracranial solid tumors or lymphomas (47% female, mean age at diagnosis and assessment: 6.2 and 11.7 years). Patients with pre-existing neurological conditions were excluded. Sociodemographic, disease-related, and treatment data were collected. Cognitive performance was assessed using Wechsler Intelligence Scales for Children (WISC-IV, WISC-V). Psychosocial outcomes included parent and/or patient-reported executive functions (Behavior Rating Inventory of Executive Function), behavior (Conner's Parent Rating Scale), QoL (Pediatric Quality of Life Inventory), fatigue (Multidimensional Fatigue Scale), and depression (Children's Depression Inventory). Information on schooling and educational/rehabilitative interventions was also recorded. RESULTS: Diagnoses included lymphoma (25%), nephroblastoma (19%), neuroblastoma (19%), osteosarcoma (7%), other sarcomas (18%), and other tumors (12%). Mean Full Scale Intellectual Quotient [M(SD) = 99.44(15.62)] was as expected in the general population [M(SD) = 100(15)], but the WISC-IV Perceptual Reasoning Index was slightly lower [M(SD) = 95.4(15.0),