General results
Altogether, the study participants included 44 patients who completed the self-administered HRQoL and general questionnaires involved in the study. The median age of the whole sample was 15.5 years, and 20/44 patients were female. Twenty-one patients (48%) attended the proposed exercise sessions, and thus formed the GYM group, while 23 (52%) refused the proposed exercise program and formed the No-GYM group. The two groups were statistically different as regards type of cancer (P 0.034): 6 of 8 patients with brain tumors refused to attend the gym; and all patients with neuroblastoma invited joined the GYM group. Table 1 shows patients’ characteristics and their answers in the general questionnaire, overall and by group.