Impact of executive functioning on health-related quality of life of pediatric brain tumor survivors.

BACKGROUND Brain tumor survivors are at risk for significant late effects following treatment completion that may adversely impact health-related quality of life (HRQOL). The current study examines the relationship between executive functioning (EF) and HRQOL in pediatric brain tumor survivors within a longitudinal framework. We hypothesized that early deficits in EF would be related to less optimal HRQOL in this population. PROCEDURE The current study utilized retrospective medical chart review to identify neurocognitive correlates of HRQOL in 137 youth previously treated for a pediatric brain tumor. Participants completed the Pediatric Quality of Life Inventory (PedsQL) and neuropsychological assessment, including a well-validated measure of executive functioning (Behavior Rating Inventory of Executive Function; BRIEF). General linear regression and multivariate models were utilized to examine the relationship between child executive functioning and HRQOL. RESULTS Multiple domains of child executive functioning, as reported by parents on the BRIEF, significantly predicted parent-proxy reported HRQOL after controlling for demographic and medical covariates, including child intellectual functioning (IF). Similarly, after controlling for covariates, the BRIEF Cognitive Regulation Index was a significant predictor of self-reported physical and school functioning domains of HRQOL. CONCLUSION Current data demonstrate EF is a significant predictor of HRQOL during survivorship for youth previously diagnosed with a pediatric brain tumor. Results suggest that opportunities may exist to intervene and improve HRQOL of pediatric brain tumor survivors by targeting EF.