Self-perceived health and burden of diabetes in teenagers with type 1 diabetes: psychometric properties of the Swedish measure 'check your health'.

UNLABELLED: The aim of this study was to test the psychometric properties of the instrument 'Check your health' in teenagers with type 1 diabetes. The instrument measures 'self-reported health' and 'burden of diabetes'. A convenience sample of 199 teenagers, 12-17 years of age, completed the questionnaires 'Check your health' and DisabKids when visiting the diabetes clinic. Forty-seven patients completed the questionnaires at home a second time. In the reliability test, the correlation between test and retest was found to be satisfactory, (0.94-0.62, except for social burden, 0.41). Convergent validity was moderate (0.62-0.38), while the instrument showed good discriminant validity. Self-reported health and burden of diabetes were different in boys and girls, in patients with good or poor metabolic control or who reported high and low disease severity. The domain burden of diabetes turned out to be very sensitive.
CONCLUSION: The instrument 'Check your health' showed clinical utility in teenagers with diabetes. Reliability and validity tests of the measure showed promising results in Swedish teenagers, and it can probably be used in clinical settings. To further strengthen the convergent validity, it should be compared with other QoL instruments, and to obtain normative values, it has to be used in a larger context.