The mean (+/-SD) age of participants was 9+/-1.2 years, and the duration of diabetes was 4.9+/- 2 years. The Cronbach a coefficient of child and parent report generally approached 0.825, indicating their internal consistency and reliability. There was a statistically significant difference in the total scores among children and their parents in all 3 age groups (p < 0.001), however, to a lower degree in the adolescent group, where the main difference was in the "worry" section where parents reported worse QOL. The total scores showed good psychological adjustment of children and adolescents with diabetes, mean score (+/- SD_ was 85.7 (12.45), with slightly worse QOL in the 8-12 year old (71.2+/-13.1) p>0.05. Growing age, HbA1c, mode of insulin therapy, SES did not influence QOL of children with diabetes.