The Effects of Type 1 Diabetes and its Long-Term Complications on Physical and Mental Health Status

Jarmo Hahl (), Helena Hämäläinen, Tuula Simell and Olli Simell

PharmacoEconomics, 2006, vol. 24, issue 6, 559-569

Abstract: Objective: To analyse how type 1 diabetes mellitus (DM) and the symptoms of its chronic long-term complications correlate with health status domains in the adult population in Finland. Methods: A representative sample of patients with type 1 DM was selected randomly from the Finnish drug reimbursement registry. Participants reported symptoms, diagnoses and treatments indicating the presence and time of appearance of long-term complications, and completed the RAND 36 questionnaire. A principal component analysis was performed to compress the eight RAND 36 dimensions into composite domains of health status. The results were validated with split-sample analysis. Regression analyses were used to estimate the effects of age, sex, symptoms of long-term complications and comorbidities on the component T-scores. Results: Of the 752 (70.8%) responders, 592 fulfilled the criteria of type 1 DM. Of these, 82.6% fully completed the RAND 36 questionnaire. Principal component analysis of our data supports the theory of the 2-factor model of health, as physical and mental health domains were reflected unambiguously by different RAND 36 dimensions. The regression results show that the symptoms of longterm complications correlate more strongly with the physical than the mental domain of health status. Conclusion: Type 1 DM, and especially the symptoms of its long-term complications, correlate mainly with the physical domain of health, although the mental domain is also affected. The prevalence of long-term complications with type 1 DM is sufficiently high within the Finnish population to substantially influence the health status of people with type 1 DM. Copyright Adis Data Information BV 2006

Date: 2006
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DOI: 10.2165/00019053-200624060-00004

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