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. 2011 Nov;34(11):2387-9.
doi: 10.2337/dc11-0157. Epub 2011 Sep 16.

Routine data sources challenge international diabetes Federation extrapolations of national diabetes prevalence in Switzerland

Matthias Bopp  1 , Ueli Zellweger, David Faeh
Affiliations

Routine data sources challenge international diabetes Federation extrapolations of national diabetes prevalence in Switzerland

Matthias Bopp et al. Diabetes Care. 2011 Nov.

Abstract

Objective: Information on diabetes prevalence in the general population is scarce and often based on extrapolations. We evaluated whether prevalence could be estimated from routine data sources.

Research design and methods: The sources were 1) hospital discharges (2008, n = 828,171), 2) death registry (2007/2008, n = 118,659), and 3) Swiss Health Survey (SHS; 2007, n = 18,665). Persons without diabetes as underlying cause of death (death registry) or principal diagnosis (hospital discharges) were regarded as surrogate for a general population random sample.

Results: In those aged 20-84 years, 4.5% of men and 3% of women were expected to have diabetes. By source, estimations were 4.4 and 2.8% (hospital discharges), 3.8 and 3.1% (death registry), and 4.9 and 3.7% (SHS) for men and women, respectively. Among sources, age-sex patterns were similar.

Conclusions: In countries with adequate data quality, combination of routine data may provide valid and reliable estimations of diabetes prevalence. Our figures suggest that International Diabetes Federation extrapolations substantially overestimate diabetes prevalence in Switzerland.

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