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Diabetes and coronary heart disease as risk factors for mortality in older adults.

TitleDiabetes and coronary heart disease as risk factors for mortality in older adults.
Publication TypeJournal Article
Year of Publication2010
AuthorsCarnethon, MR, Biggs, ML, Barzilay, J, Kuller, LH, Mozaffarian, D, Mukamal, K, Smith, NL, Siscovick, D
JournalAm J Med
Volume123
Issue6
Pagination556.e1-9
Date Published2010 Jun
ISSN1555-7162
KeywordsAged, Coronary Disease, Diabetes Mellitus, Type 2, Female, Follow-Up Studies, Humans, Male, Prevalence, Risk Factors, Sex Distribution, Survival Rate, Time Factors, United States
Abstract<p><b>BACKGROUND: </b>Type 2 diabetes has been described as a coronary heart disease (CHD) "risk equivalent." We tested whether cardiovascular and all-cause mortality rates were similar between participants with prevalent CHD vs diabetes in an older adult population in whom both glucose disorders and preexisting atherosclerosis are common.</p><p><b>METHODS: </b>The Cardiovascular Health Study is a longitudinal study of men and women (n=5784) aged > or =65 years at baseline who were followed from baseline (1989/1992-1993) through 2005 for mortality. Diabetes was defined by fasting plasma glucose > or =7.0 mmol/L or use of diabetes control medications. Prevalent CHD was determined by confirmed history of myocardial infarction, angina, or coronary revascularization.</p><p><b>RESULTS: </b>Following multivariable adjustment for other cardiovascular disease risk factors and subclinical atherosclerosis, CHD mortality risk was similar between participants with CHD alone vs diabetes alone (hazard ratio [HR] 1.04, 95% confidence interval [CI], 0.83-1.30). The proportion of mortality attributable to prevalent diabetes (population-attributable risk percent=8.4%) and prevalent CHD (6.7%) was similar in women, but the proportion of mortality attributable to CHD (16.5%) as compared with diabetes (6.4%) was markedly higher in men. Patterns were similar for cardiovascular disease mortality. By contrast, the adjusted relative hazard of total mortality was lower among participants with CHD alone (HR 0.85, 95% CI, 0.75-0.96) as compared with those who had diabetes alone.</p><p><b>CONCLUSIONS: </b>Among older adults, diabetes alone confers a risk for cardiovascular mortality similar to that from established clinical CHD. The public health burden of both diabetes and CHD is substantial, particularly among women.</p>
DOI10.1016/j.amjmed.2009.11.023
Alternate JournalAm. J. Med.
PubMed ID20569763
PubMed Central IDPMC3145803
Grant ListN01-HC-85085 / HC / NHLBI NIH HHS / United States
U01 HL080295 / HL / NHLBI NIH HHS / United States
N01-HC-85081 / HC / NHLBI NIH HHS / United States
N01 HC015103 / HC / NHLBI NIH HHS / United States
N01HC55222 / HL / NHLBI NIH HHS / United States
N01-HC-85086 / HC / NHLBI NIH HHS / United States
N01HC85086 / HL / NHLBI NIH HHS / United States
N01-HC-85082 / HC / NHLBI NIH HHS / United States
N01 HC-55222 / HC / NHLBI NIH HHS / United States
N01-HC-85083 / HC / NHLBI NIH HHS / United States
N01-HC-75150 / HC / NHLBI NIH HHS / United States
N01-HC-85080 / HC / NHLBI NIH HHS / United States
N01HC75150 / HL / NHLBI NIH HHS / United States
N01-HC-85079 / HC / NHLBI NIH HHS / United States
N01HC85079 / HL / NHLBI NIH HHS / United States
N01 HC045133 / HC / NHLBI NIH HHS / United States
N01 HC035129 / HC / NHLBI NIH HHS / United States
N01-HC-85084 / HC / NHLBI NIH HHS / United States