OBJECTIVE To define the relationship between HbA(1c) and plasma glucose (PG) levels in patients with type 1 diabetes using data from the Diabetes Control and Complications Trial (DCCT). RESEARCH DESIGN AND METHODS The DCCT was a multicenter, randomized clinical trial designed to compare intensive and conventional therapies and their relative effects on the development and progression of diabe...

OBJECTIVE To evaluate the relationship between skin advanced glycation end products (sAGEs) with mean blood glucose (MBG), hemoglobin A(1c) (HbA(1c)), and MBG-independent, between-patient differences in HbA(1c) among children with type 1 diabetes. RESEARCH DESIGN AND METHODS Children aged 5 to 20 years with type 1 diabetes of at least 1 year duration participated. At a clinic visit, sAGE was ...

OBJECTIVE The Internet is used worldwide as a communication tool. To improve the quality of diabetes control, we investigated the effectiveness of an Internet-based blood glucose monitoring system (IBGMS) on controlling the changes in HbA(1c) levels. RESEARCH DESIGN AND METHODS We conducted a randomized clinical trial involving 110 patients who visited the outpatient clinic at the Kangnam St....

OBJECTIVES To assess the accuracy of point-of-care (POC) measurements of capillary blood glucose and glycosylated haemoglobin (HbA(1c)) levels in a remote Aboriginal community with high diabetes prevalence. DESIGN Cross-sectional study comparing POC capillary glucose and HbA(1c) results with those from corresponding venous samples measured in a reference laboratory. PARTICIPANTS AND SETTING...

OBJECTIVE People with type 1 diabetes have increased risk of hospital admission compared with those without diabetes. We hypothesized that HbA(1c) would be an important indicator of risk of hospital admission. RESEARCH DESIGN AND METHODS The Scottish Care Information-Diabetes Collaboration, a dynamic national register of diagnosed cases of diabetes in Scotland, was linked to national data on ...

BACKGROUND Chronic hyperglycemia has been hypothesized to contribute to coronary heart disease (CHD), but the extent to which hemoglobin A(1c) (HbA(1c)) level, a marker of long-term glycemic control, is independently related to CHD risk is uncertain. METHODS We conducted a prospective case-cohort study of 1321 adults without diabetes and a cohort study of 1626 adults with diabetes from the At...

OBJECTIVE To identify predictors of low hemoglobin A(1c) (HbA(1c)) (<5.0%) and to investigate the association of low HbA(1c) with cause-specific mortality and risk of liver disease hospitalization. RESEARCH DESIGN AND METHODS Prospective cohort study of 13,288 participants in the Atherosclerosis Risk in Communities Study. Logistic regression was used to identify cross-sectional correlates of ...

OBJECTIVE To evaluate ethnic differences and characteristics related to glycaemic control in patients with Type 2 diabetes in primary care. RESEARCH DESIGN AND METHODS Prospective cohort study; 500 adult patients with Type 2 diabetes, who were not on insulin therapy, were followed up annually for 3 years. HbA(1c) at baseline and 3-year changes and subsequent insulin therapy were related to ba...

BACKGROUND Serum total bilirubin (TB) is a potent antioxidant and may be a negative risk factor of cardiovascular disease. In non-diabetic adults, hemoglobin A(1c) (HbA(1c)), but not fasting plasma glucose, is an independent risk factor of cardiovascular disease. METHODS AND RESULTS Linear regression using TB as a dependent variable and cardiovascular risk factors, including HbA(1c), as indep...

OBJECTIVE This study examined predictive and mediated relationships among youth perception of critical parenting, Child Behavior Checklist Externalizing Subscale (CBCL) externalizing problem scores, adherence, and (hemoglobin A(1c) HbA(1c)), in youth with type 1 diabetes from low socioeconomic status families. METHODS Caregiver/youth dyads (n = 120) completed diabetes specific measures of fam...