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Objective: To study the cardiovascular risk (CVR) associated with the diagnostic criteria for diabetes proposed by the American Diabetes Association., Design: Cross-sectional, descriptive study., Setting: Urban health district., Patients: 1840 patients > 14 years old, selected by simple randomised sampling from the clinical records (CR) archive, were studied., Method: Through review of the CR, the patients were classified as having: normal glycaemia, disturbed basal glycaemia (DBG) and type-2 diabetes mellitus (DM2). CVR was studied through the simplified Framingham method and the CVR factors of obesity, tobacco dependency, hypertension, hypercholesterolaemia and hypertriglyceridaemia. The likelihood of having high or very high CVR and the CVR factors described in the patients with DBG or DM2 were compared with the same in those with normal glycaemia, through logistical regression with the odds ratio adjusted for age and sex., Results: 1351 patients were classified: 995 with normal glycaemia, 146 with DBG and 210 with DM2. Patients with DBG or DM2 had greater likelihood of high or very high CVR, with some OR at 2.26 (95% CI, 1.39-3.69) and 2.74 (95% CI, 1.81-4.15), respectively. They also had differences (p < 0.05) for obesity (OR, 1.76 and 1.58), hypertension (OR, 1.75 and 2.15) and hypertriglyceridaemia (OR, 1.73 and 2.70), respectively. There were no differences (p > 0.05) for tobacco dependency and hypercholesterolaemia. No differences were found (p > 0.05) between DBG and DM2 for CVR and the CVR factors studied., Conclusions: Patients with DBG and DM2 are at high CVR.

Objective: To compare the diagnostic prevalence of type-2 Diabetes Mellitus (DM2) according to the criteria of the American Diabetes Association (ADA-97) and the WHO., Design: Crossover descriptive study., Setting: Urban Health Centre, with a total of 34,234 clinical histories (CH)., Patients: 782 patients, selected through simple random sampling from medical records, aged 45 or over, with a minimum of 5 attendances recorded in their CH and at least 3 attendances in the previous 2 years, were studied., Measurements and Main Results: Through review of the CH, the variables age, sex and presence of obesity (BMI3 30) were collected. DM2 patients were classified according to WHO criteria, in the three ADA-97 categories: DM2, basal glucaemia altered (BGA) and normal glucaemia (NG) and other situations with altered glucaemia. Mean age was 62.6 (SD 10.8), with 56.4% women. 95 patients (12.1%) had no glucaemia recorded. 15.6% of the patients with WHO criteria (10.7% through oral overload) were diagnosed with DM2, proportion that went up to 18.3% (CI 95% of difference: -1 to 6.4%) on application of the ADA-97 criteria. 12.8% had BGA, 54.1% NG and 2.7% other situations. Additional DM2 cases diagnosed with ADA-97 criteria had a greater proportion of obese people (p = 0.03), with no differences for age and sex found., Conclusions: We found a 2.7% increase in the prevalence of DM2 diagnosis in the 45 or over population on applying the ADA-97 criteria. These criteria simplify the diagnosis and will enable an appreciable number of patients not diagnosed under WHO criteria (since oral overload is little used) to be diagnosed. This will foment early action to retard micro and macrovascular complications caused by the disease.