Fig. 1.

Literature search flow diagram using the PRISMA checklist. PRISMA Preferred Reporting Items for Systematic Reviews and Meta-Analyses. ¹Thirty studies were included in the final review. The two papers by Glaser et al., i.e. ‘Standardized quantitative assessment of brain tumor survivors treated within clinical trials in childhood’ [36] and ‘Applicability of the Health Utilities Index to a population of childhood survivors of central nervous system tumours in the UK’ [37], were published in two different journals but used the same sample to report different results. To prevent double counting, these two papers were considered as one