BACKGROUND The national programs for the harmonization of hemoglobin (Hb)A(1c) measurements in the US [National Glycohemoglobin Standardization Program (NGSP)], Japan [Japanese Diabetes Society (JDS)/Japanese Society of Clinical Chemistry (JSCC)], and Sweden are based on different designated comparison methods (DCMs). The future basis for international standardization will be the reference syst...

OBJECTIVE Glycated hemoglobin (HbA(1c)) values are higher in African Americans than whites, raising the question of whether classification of diabetes status by HbA(1c) should differ for African Americans. We investigated the relative contribution of genetic ancestry and nongenetic factors to HbA(1c) values and the effect of genetic ancestry on diabetes classification by HbA(1c) in African Amer...

Glycated hemoglobin (HbA(1c)) is a parameter broadly employed in the assessment of glycemic control in diabetes. The 2010 "Standards of medical care in diabetes", published by the American Diabetes Association (ADA), recommended performing the HbA(1c) test at least every 6 months in patients in whom disease is clinically stable, while subjects after modifications of therapy or in whom glycemic ...

background: the ultimate goal of diabetes control is hba 1c improvement. the purpose of this study was to assess the effect of empowerment model on hba 1c among adolescents with type 1 diabetes. methods: the present semi-experimental study was carried out on some 47 diabetic adolescents in order to investigate the effect of an educational program based on the empowerment model on hba 1c among a...

BACKGROUND Glycosylated hemoglobin, HbA 1c is the most acceptable measure of chronic glycemia. It is not widely available and/or affordable in Nigeria. The mean of the monthly fasting plasma glucose (MFPG) of the preceding 3 months is often used as surrogate for assessing chronic glycemia. OBJECTIVE To determine the relationships among fasting plasma glucose (FPG), 2-hour post-prandial glucos...

BACKGROUND Patient education is a cornerstone of treatment in diabetes mellitus, but there is not unanimity of opinion as to how it should be delivered. OBJECTIVE To determine whether a single, intensive group educational program would improve glycosylated hemoglobin (HbA(1c)) levels when compared with passive education. METHODS A total of 106 patients with HbA(1c) levels greater than 8.5% ...

OBJECTIVE To examine the influence of glycemic and nonglycemic parameters on HbA(1c) concentrations in young adults, the majority of whom had normal glucose tolerance. RESEARCH DESIGN AND METHODS We compared the diagnosis of normal glucose tolerance, prediabetes, and diabetes between a standard oral glucose tolerance test (OGTT; World Health Organization 2006 criteria) and HbA(1c) concentrati...

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...

BACKGROUND The measurement of hemoglobin A(1c) (Hb A(1c)) is employed in monitoring of patients with diabetes. Use of point-of-care testing (POCT) for Hb A(1c) results at the time of the patient consultation potentially provides an opportunity for greater interaction between patient and caregiver, and more effective care. OBJECTIVE To perform a systematic review of current trials to determine...