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  • Title: Correlates of age onset of type 2 diabetes among relatively young black and white adults in a community: the Bogalusa Heart Study.
    Author: Nguyen QM, Xu JH, Chen W, Srinivasan SR, Berenson GS.
    Journal: Diabetes Care; 2012 Jun; 35(6):1341-6. PubMed ID: 22399694.
    Abstract:
    OBJECTIVE: The risk factors for middle-age onset of type 2 diabetes are well known. However, information is scant regarding the age onset of type 2 diabetes and its correlates in community-based black and white relatively young adults. RESEARCH DESIGN AND METHODS: This prospective cohort study consisted of normoglycemic (n = 2,459) and type 2 diabetic (n = 144) adults aged 18-50 years who were followed for an average of 16 years. RESULTS: The incidence rate of the onset of type 2 diabetes was 1.6, 4.3, 3.9, and 3.4 per 1,000 person-years for age-groups 18-29, 30-39, and 40-50 and total sample, respectively. Incidences of diabetes increased with age by race and sex groups (P for trend ≤ 0.01); higher in black females versus white females and blacks versus whites in total sample (P < 0.05). In a multivariable Cox model, baseline parental diabetes (hazard ratio [HR] 5.24) and plasma insulin were significantly associated with diabetes incidence at the youngest age (18-29 years); black race, BMI, and glucose at age 30-39 years; female sex, parental diabetes (HR 2.44), BMI, ratio of triglycerides and HDL cholesterol (TG/HDL-C ratio), and glucose at age 40-50 years; and black race, parental diabetes (HR 2.44), BMI, TG/HDL-C ratio, and glucose in whole cohort. Further, patients with diabetes, regardless of age onset, displayed a significantly higher prevalence of maternal history of diabetes at baseline (P < 0.01). CONCLUSIONS: In relatively young adults, predictability of baseline cardiometabolic risk factors along with race, sex, and parental history of diabetes for the onset of type 2 diabetes varied by age-group. These findings have implications for early prevention and intervention in relatively young adults.
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