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- Title
Shifting from glucose diagnostic criteria to the new HbA<sub>1c</sub> criteria would have a profound impact on prevalence of diabetes among a high-risk Spanish population.
- Authors
Costa, B.; Barrio, F.; Cabré, J.-J.; Piñol, J.-L.; Cos, F.-X.; Solé, C.; Bolibar, B.; Castell, C.; Lindström, J.; Barengo, N.; Tuomilehto, J.
- Abstract
Diabet. Med. 28, 1234-1237 (2011) Abstract Aim To investigate changes in the prevalence of diabetes and pre-diabetes by shifting from 2-h plasma glucose and/or fasting plasma glucose diagnostic criteria to the proposed new HbA1c-based criteria when applied to a Mediterranean population detected to have a high risk of Type 2 diabetes. Methods Individuals without diabetes aged 45-75 years ( n = 2287) were screened using the Finnish Diabetes Risk Score questionnaire, a 2-h oral glucose tolerance test plus HbA1c test. Prevalence and degree of diagnostic overlap between three sets of criteria (2-h plasma glucose, fasting plasma glucose and HbA1c) and three diagnostic categories (normal, pre-diabetes and diabetes) were calculated. Results Defining diabetes by a single HbA1c measurement resulted in a dramatic decrease in prevalence (1.3%), particularly in comparison with diabetes defined by 2-h plasma glucose (8.6%), but was also significant with regard to fasting plasma glucose (2.8%). A total of 201 screened subjects (8.8%) were classified as having diabetes and 1023 (44.7%) as having pre-diabetes based on at least one of these criteria; among these, the presence of all three criteria simultaneously classified only 21 and 110 individuals respectively, about ten percent of each group. The single overlap index between subjects diagnosed as having diabetes by 2-h plasma glucose/fasting plasma glucose vs. HbA1c was 13.9/28%. Similarly, the single overlap index regarding pre-diabetes was 19.2/27.1%. Conclusions A shift from the glucose-based diagnosis to the HbA1c-based diagnosis for diabetes will reduce diabetes prevalence with a low overall or single degree of overlap between diagnostic categories in this high-risk Spanish population.
- Subjects
BLOOD sugar analysis; DIAGNOSIS of diabetes; DIABETES risk factors; ANALYSIS of variance; EPIDEMIOLOGY; GLYCOSYLATED hemoglobin; HISPANIC Americans; MEDICAL societies; PREDIABETIC state; PUBLIC health; WORLD Health Organization; BODY mass index; DATA analysis software
- Publication
Diabetic Medicine, 2011, Vol 28, Issue 10, p1234
- ISSN
0742-3071
- Publication type
Article
- DOI
10.1111/j.1464-5491.2011.03304.x