Comparison of venous plasma glycemia and capillary glycemia for the screening of type 2 diabetes mellitus in the Japanese-Brazilian community of Mombuca (Guatapará-SP)

<p>Abstract</p> <p>Background</p> <p>To identify the most appropriate cut-off points of fasting glycemia for the screening of diabetes mellitus type 2 (DM2) with the comparison of the properties of capillary glycemia (CG) and venous blood plasma glycemia (PG) in a population of Japanese origin from the community of Mombuca, Guatapará - SP, Brazil.</p> <p>Methods</p> <p>This was a population-based descriptive cross-sectional study conducted on a sample of 131 individuals of both genders aged 20 years or more (66.8% of the target population). CG was measured with a glucometer in a blood sample obtained from the fingertip and PG was determined by an enzymatic method (hexokinase) in venous blood plasma, after a 10-14 hour fast in both cases. Data were analyzed by the receiver operating characteristic (ROC) curve in order to identify the best cut-off point for fasting glycemia (CG and PG) for the diagnosis of DM, using the 2-hour plasma glycemia > 200 mg/dl as gold - standard.</p> <p>Results</p> <p>The ROC curve revealed that the best cut-off point for the screening of DM was 110 mg/dl for CG and 105 mg/dl for PG, values that would optimize the relation between individuals with positive and false-positive results. The area under the ROC curve was 0.814 for CG (p < 0.01) and 0.836 for PG (p < 0.01).</p> <p>Conclusions</p> <p>The cut-off points of 105 mg/dl(5.8 mmol/l) for PG and of 110 mg/dl(6.1 mmol/l) for CG appear to be the most appropriate for the screening of DM2 in the population under study, with emphasis on the fact that the value recommended for CG is 5 mg/dl higher than that for PG, in contrast to WHO recommendations.</p

Macrovascular disease in a Japanese-Brazilian population of high prevalence of metabolic syndrome: Associations with classical and non-classical risk factors

Background: the Japanese-Brazilian Diabetes Study detected high prevalence of metabolic syndrome (MS) in a population of Japanese ancestry living in Brazil. We describe the prevalence of macrovascular disease (MVD) and its association with classical and non-classical cardiovascular risk factors in this population.Methods: An overall of 1163 individuals were studied; diagnosis of MVD was based on a score obtained from medical history, ankle-brachial pressure index and electrocardiogram, defining three groups: no MVD, possible MVD and definite MVD.Results: Prevalence of MVD was 14.3% (possible MVD: 11.2%; definite MVD: 3.1%). Individuals with MS had higher rates of MVD (16.9% versus 11.2%; p < 0.05). Comparing to no MVD, age, 2 It plasma glucose, anti-LDL(+) and anti-LDL(-) levels, and urinary albumin-to-creatinine ratio were higher in both categories with MVD; waist-to-hip ratio, fasting plasma glucose, HbAlc, total-to-HDL cholesterol ratio and triglycerides were higher in that with definite MVD; systolic blood pressure and homocysteine were higher in that with possible MVD. Using logistic regression, systolic blood pressure, smoking habit and anti-LDL(+) were independently associated with MVD.Conclusion: MVD is highly prevalent in Japanese-Brazilians and its association with MS was confirmed. A novel marker of lipoprotein modifications-anti-LDL(+) antibody-could be useful in identifying individuals at higher risk. (c) 2006 Elsevier Ireland Ltd. All rights reserved.Universidade Federal de São Paulo, Dept Internal Med, Div Endocrinol, BR-05508 São Paulo, BrazilUniv São Paulo, Ribeirao Preto Med Sch, Dept Social & Prevent Med, BR-05508 São Paulo, BrazilUniversidade Federal de São Paulo, Dept Prevent Med, São Paulo, BrazilUniv São Paulo, Dept Clin & Toxicol Anal, BR-05508 São Paulo, BrazilUniv São Paulo, Sch Publ Hlth, Dept Nutr, BR-05508 São Paulo, BrazilUniversidade Federal de São Paulo, Dept Surg, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Internal Med, Div Endocrinol, BR-05508 São Paulo, BrazilUniversidade Federal de São Paulo, Dept Prevent Med, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Surg, São Paulo, BrazilWeb of Scienc