Aims: To describe perceived functional health and well‐being and diabetes‐related impact, worry and satisfaction with life in relation to demographic and clinical variables in a population of adolescents with type 1 diabetes. To compare perceived functional health and well‐being between adolescents with diabetes and a group of healthy controls and to analyse the relationship between generic functional health and well‐being and diabetes‐related impact, worry and satisfaction with life. Methods: A total of 130 adolescents were invited to complete the Child Health Questionnaire (CHQ‐CF87) and the Diabetes Quality of Life (DQOL) questionnaire modified for youths. A total of 115 (88.5%) subjects participated in the study; mean age 14.5 y (SD 1.86), mean duration of diabetes 6.99 y (SD 3.77, range 1–16 y), mean HbA1c 9.3% (SD 1.62, range 6.2–14.0%). Forty‐eight percent of the subjects were girls. Results: When compared with healthy adolescents, subjects with diabetes reported a significantly lower degree of general health. The CHQ‐CF87 scales showed that higher age in adolescents with diabetes was associated with lower scores for mental health (p < 0.001), self‐esteem (p < 0.001), behaviour (p= 0.004) and general health (p < 0.001). Findings from the DQOL questionnaire showed that older adolescents were more worried (p < 0.001), perceived a greater impact of diabetes on daily life (p= 0.008) and lower diabetes‐related life satisfaction (p < 0.001). The scores for girls were lower than those for boys in assessment of mental health (p < 0.001), self‐esteem (p= 0.004) and family cohesion (p= 0.002). Girls also reported a greater impact of diabetes (p= 0.028), more worries (p= 0.001) and less satisfaction with life (p= 0.006) than boys. Neither HbA1c nor other clinical variables could sufficiently explain the variations in DQOL or CHQ‐CF87. Conclusions: Health‐related quality of life varied significantly by age and gender, but less so by HbA1c and other clinical variables. Adolescents with diabetes reported a significantly lower degree of general health than that reported by healthy controls. The CHQ‐CF87 is a valuable supplement to DQOL, allowing for comparisons with the general population.

Our comparison of EPB and TB subjects at the ages of 17 and 24 indicated that psychosocial HRQoL may deteriorate for EPB subjects when they enter adulthood.