Journal
DIABETES CARE
Volume 24, Issue 12, Pages 2065-2070Publisher
AMER DIABETES ASSOC
DOI: 10.2337/diacare.24.12.2065
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Funding
- NIA NIH HHS [N01-AG-6-2,102, P60 AG10484, N01-AG-6-2,106, N01-AG-6-2,103] Funding Source: Medline
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OBJECTIVE - To assess, in an older population, the prevalence of diagnosed and undiagnosed diabetes, the number needed to screen (NNTS) to identify one individual with undiagnosed diabetes, and factors associated with undiagnosed diabetes. RESEARCH DESIGN AND METHODS - Socioeconomic and health-related factors were assessed at the baseline examination of the Health, Aging, and Body Composition (Health ABC) Study, a cohort of 3,075 well-functioning people aged 70-79 years living in Memphis, Tennessee and Pittsburgh, Pennsylvania (42% blacks and 48% men). Diabetes was defined according to the 1985 World Health Organization criteria (fasting glucose greater than or equal to7.8 mmol/l or 2-h glucose greater than or equal to 11.1 mmol/l) and the 1997 American Diabetes Association criteria (fasting glucose greater than or equal to7.0 mmol/l). RESULTS - The prevalence of diagnosed and undiagnosed diabetes was 15.6 and 8.0%, respectively, among all participants (NNTS 10.6), 13.9 and 9.1% among white men (NNTS 9.5), 7.8 and 7.4% among white women (NNTS 12.4), 22.7 and 9.1% among black men (NNTS 8.5), and 21.6 and 6.2% among black women (NNTS 12.6). In multivariate analyses, compared with individuals without diabetes, individuals with undiagnosed diabetes were more likely to be men and were more likely to have a history of hypertension, higher BMI, and larger waist circumference. NNTS was lowest in men (9.1), individuals with hypertension (8.7), individuals in the highest BMI quartile (6.9), and individuals fit the largest, waist circumference quartile (6.8). CONCLUSIONS - In approximately one-third of all older people with diabetes, the condition remains undiagnosed. Screening for diabetes may be more efficient among men and individuals with hypertension, high BMI, and large waist circumference.
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