title: Use of HbA(1c) in screening for Cuban-Americans with undiagnosed type 2 diabetes.
abstract: This study evaluated the use of HbA(1c) as a screening tool for undiagnosed type 2 diabetes (fasting plasma glucose ≥7.0 mmol/l) in a sample of Cuban-Americans aged ≥ 30 years old. Subjects were randomly recruited from Miami-Dade and Broward counties, FL. Fasting plasma glucose was measured by hexokinase enzymatic method. HbA(1c) was measured by the DCA2000 + system using the monoclonal antibody method. HbA(1c) demonstrated a high predictive value in detecting undiagnosed diabetes. The area under the receiver operating characteristics (ROC) curve was 0.87. Also, HbA(1c) had high sensitivity and specificity when using a cut off value of 6.37 (71 and 86%, respectively). Moderate sensitivity and very high specificity were shown with a cut off value of 6.84 (57 and 96%, respectively). HbA(1c) is a reliable alternative to fasting plasma glucose in screening for undiagnosed diabetes in Cuban-Americans.
authors.affiliation: Department of Dietetics and Nutrition, Florida International University, 11200 SW 8th ST, HLS I-450, Miami, FL 33199, USA. huffmanf@fiu.edu
authors.forename: Fatma G
authors.initials: FG
authors.lastname: Huffman
authors.forename: Joel C
authors.initials: JC
authors.lastname: Exebio
authors.forename: Gustavo G
authors.initials: GG
authors.lastname: Zarini
authors.forename: Cristobal
authors.initials: C
authors.lastname: Exebio
mesh_terms: D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000032:analysis; D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000175:diagnosis* / Q000208:ethnology; D005260:Female; D005431:Florida; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006630:Hispanic or Latino; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D011237:Predictive Value of Tests
chemical_list: D015415:Biomarkers; D001786:Blood Glucose; D006442:Glycated Hemoglobin