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Diabet Med. 2006 Nov;23(11):1261-7.

Type 1 diabetes as a risk factor for stroke in men and women aged 15-49: a nationwide study from Sweden.

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Centre for Family and Community Medicine, Karolinska Institute, Huddinge, Sweden.



The main objective was to determine premature stroke risk in men and women in Sweden with previous hospital admission for Type 1 diabetes or without previous hospital admission.


All individuals in Sweden aged 15-34 years at first hospital admission for Type 1 diabetes and aged 15-49 years at first hospital admission for stroke during the study period (1987-2001) were identified. Standardized incidence ratios (SIRs) were calculated to compare premature stroke risk between individuals admitted to hospital with Type 1 diabetes and individuals without hospital admission, after controlling for age, time period, occupation and geographical region. SIRs were also calculated for individuals with diabetic complications.


The overall SIRs for premature stroke in men and women with hospital admission for Type 1 diabetes were 17.94 [95% confidence interval (CI) 12.87, 24.36] and 26.11 (95% CI 18.81, 35.32), respectively. Men and women with diabetic nephropathy had the highest significant SIRs of premature stroke: 48.87 and 73.53, respectively.


Our data indicate that young to middle-aged individuals with Type 1 diabetes had a considerably higher risk of premature stroke than those without Type 1 diabetes. This underscores the need to implement vigorous interventions in healthcare settings in order to decrease the risk of premature stroke in individuals with Type 1 diabetes.

[Indexed for MEDLINE]

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