OBJECTIVEWe examined metabolic profiles and cardiovascular-renal outcomes in a prospective cohort of Chinese patients with young-onset diabetes defined by diagnosis age ,40 years. Patients with type 1 diabetes and normal-weight (BMI ,23 kg/m 2 ) and overweight (BMI ‡23 kg/m 2 ) patients with type 2 diabetes were compared.
RESEARCH DESIGN AND METHODSBetween 1995 and 2004, 2,323 patients (type 1 diabetes, n = 209; normal-weight type 2 diabetes, n = 636; and overweight type 2 diabetes, n = 1,478) underwent detailed clinical assessment. Incident cardiovascular disease (CVD) including coronary heart disease, stroke, and peripheral vascular disease were identified using hospital discharge diagnoses. End-stage renal disease (ESRD) was defined by glomerular filtration rate ,15 mL/min/1.73 m 2 or dialysis.
RESULTSOverweight patients with type 2 diabetes had the worst metabolic profile and highest prevalence of microvascular complications. Over a median follow-up of 9.3 years, incidences of CVD were 0.6, 5.1, and 9.6 per 1,000 person-years in patients with type 1 diabetes, normal-weight patients with type 2 diabetes, and overweight patients with type 2 diabetes. A slide set summarizing this article is available online.