OBJECTIVE We hypothesized that biological variation in HbA(1c), distinct from variation attributable to mean blood glucose (MBG), would predict risk for microvascular complications in the Diabetes Control and Complications Trial (DCCT). RESEARCH DESIGN AND METHODS A longitudinal multiple regression model was developed from MBG and HbA(1c) measured in the 1,441 DCCT participants at quarterly v...

OBJECTIVE The recommended HbA(1c) diagnostic categories remain controversial and their utility in doubt in pediatrics. We hypothesized that alterations in the pathophysiologic mechanisms of type 2 diabetes may be evident in the American Diabetes Association recommended at-risk/prediabetes category (HbA(1c) 5.7 to <6.5%). RESEARCH DESIGN AND METHODS We compared in vivo hepatic and peripheral i...

The significance of glycated albumin (GA), compared with casual plasma glucose (PG) and glycated hemoglobin (HbA(1c)), was evaluated as an indicator of the glycemic control state in hemodialysis (HD) patients with diabetes. The mean PG, GA, and HbA(1c) levels were 164.5 +/- 55.7 mg/dl, 22.5 +/- 7.5%, and 5.85 +/- 1.26%, respectively, in HD patients with diabetes (n = 538), which were increased ...

OBJECTIVES To evaluate haemoglobin A1c (HbA(1c)) in diagnosing diabetes and identify the optimal HbA(1c) threshold to be used in Chinese adults. DESIGN Multistage stratified cross sectional epidemiological survey. SETTING Shanghai, China, 2007-8. PARTICIPANTS 4886 Chinese adults over 20 years of age with no history of diabetes. MAIN OUTCOME MEASURES Performance of HbA(1c) at increasing ...

OBJECTIVE To compare the diagnostic accuracy and time expenditure of screening models based on glycated hemoglobin (HbA(1c)) level and psychometric measures for mood disorder (MD) among children with type 1 diabetes. RESEARCH DESIGN AND METHODS With semistructured clinical interviews (Schedule for Affective Disorders and Schizophrenia for Children-Present and Lifetime version, 120 min/patient...

We hypothesized that school nurse supervision of glucose and insulin-dose adjustment significantly improves the hemoglobinA(1c) (HbA(1c)) level in pediatric patients with poorly controlled type 1 diabetes mellitus (HbA(1c) > or = 9%). A total of 36 subjects were enrolled and 18 subjects were randomized to receive the 3-month intervention. Their average HbA(1c) was lowered by 1.6%, suggesting th...

BACKGROUND The aim of this study was to evaluate the sensitivity and specificity of a combination of fasting plasma glucose (FPG) and glycosylated hemoglobin (HbA(1c)) for screening for diabetes in hypertensive patients. The oral glucose tolerance test (OGTT) served as a gold standard for the detection of diabetes. METHODS The cross-sectional study was performed in the Hypertension Unit of th...

OBJECTIVE Knowledge of one's actual and target health outcomes (such as HbA(1c) values) is hypothesized to be a prerequisite for effective patient involvement in managing chronic diseases such as diabetes. We examined 1) the frequency and correlates of knowing one's most recent HbA(1c) test result and 2) whether knowing one's HbA(1c) value is associated with a more accurate assessment of diabet...

Measurement of serum glycated albumin (GA) is accepted as an alternative method to evaluate chronic glycemic control in diabetic patients in whom measurement of HbA 1c is inadequate for some reason. Although GA levels are known to be influenced by serum albumin turnover besides glycemia, little is known about the physiological and pathological conditions affecting GA levels. This study was aime...

HbA(1c) 6.5% has recently been recommended as an alternative diagnostic criterion for diabetes. The aims of the study were to evaluate the effects of age, sex, and other factors on prevalence of diabetes and to compare risk profiles of subjects with diabetes when defined by HbA(1c) and glucose criteria. Subjects were recruited among participants in the longitudinal population-based Tromsø Study...