AIM Different treatment strategies have been used to manage adolescents with poorly controlled type 1 diabetes. We investigated whether a brief elective hospital admission improves haemoglobin A(1c) (HbA(1c)) over 12 months. METHODS We studied a retrospective cohort of adolescents with poorly controlled type 1 diabetes attending a tertiary care pediatric diabetes clinic in Montreal, Canada, b...

OBJECTIVE The public is increasingly aware of the importance of HbA(1c) testing, yet the vast majority of patients with diabetes do not know their HbA(1c) status or goal. We set forth to evaluate the impact of a system that provides uniquely formatted and personalized reports of diabetes status and goals on changes in HbA(1c) levels. RESEARCH DESIGN AND METHODS A total of 150 patients with di...

CONTEXT Regular exercise improves glucose control in diabetes, but the association of different exercise training interventions on glucose control is unclear. OBJECTIVE To conduct a systematic review and meta-analysis of randomized controlled clinical trials (RCTs) assessing associations of structured exercise training regimens (aerobic, resistance, or both) and physical activity advice with ...

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...

OBJECTIVE To describe the relationship between total dietary fat and the pattern of fat intake and HbA(1c). RESEARCH DESIGN AND METHODS In this cross-sectional study, 2,759 men and 3,464 women (40-78 years of age) without a previous diagnosis of type 2 diabetes were recruited from a population-based sampling frame. Diet was assessed using a self-reported semiquantitative food frequency questi...

OBJECTIVE We evaluated the role of a single measurement of HbA(1c) in a diabetes case finding in hospitalized patients with random hyperglycemia at admission. RESEARCH DESIGN AND METHODS From 20 March to 31 July 2000, 508 patients admitted through the emergency department of one hospital were tested for random hyperglycemia (plasma glucose [PG] >125 mg/dl). Consenting patients with hyperglyce...

OBJECTIVE Because readily available glycemic indicators are needed to guide clinical decision-making for intensification of diabetes therapy, our goals were to define the relationship between casual postprandial plasma glucose (cPPG) levels and HbA(1c) in patients with type 2 diabetes and to determine the predictive characteristics of a convenient glucose cutoff. RESEARCH DESIGN AND METHODS W...

HbA(1c), a measure of blood glucose regulation, reflects glucose levels in the preceding months. In diabetes, HbA(1c) levels predict the risk of microvascular complications. The aim of this study was to determine whether genetic factors could influence HbA(1c) levels in normal subjects and type 1 diabetic patients. We performed a classical twin study of HbA(1c) in healthy nondiabetic female twi...

OBJECTIVE The aim of this study was to evaluate HbA(1c) as an alternative criterion for impaired glucose tolerance (IGT) or type 1 diabetes (T1D) in high-risk subjects <21 years of age. RESEARCH DESIGN AND METHODS Subjects <21 years of age who participated in the prospective DPT-1, TEDDY, TRIGR, and Type 1 Diabetes TrialNet Natural History (TrialNet) studies and had an HbA(1c) within 90 days ...

OBJECTIVE To compare fasting plasma glucose (FPG) and HbA(1c) in identifying and predicting type 2 diabetes in a population with high rates of diabetes. RESEARCH DESIGN AND METHODS Diabetes was defined as an FPG level ≥ 126 mg/dL or an HbA(1c) level ≥ 6.5%. Data collected from the baseline and second exams (1989-1995) of the Strong Heart Study were used. RESULTS For cases of diabetes identifi...