The age-adjusted Charlson comorbidity index: A significant predictor of clinical outcome in patients with heart failure

A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation

Mary E. Charlson, Peter Pompei, Kathy L. Aleš et al. · Journal of Chronic Diseases · 1987 · 49.9K citations

Public Health, Biostatistics, Clinical Classification Systems +15

Validation of a combined comorbidity index

Mary E. Charlson, Ted P. Szatrowski, Janey C. Peterson et al. · Journal of Clinical Epidemiology · 1994 · 6.6K citations

Education, Health Sciences, Internal Medicine +12

Epidemiology and One-Year Outcomes in Patients With Chronic Heart Failure and Preserved, Mid-Range and Reduced Ejection Fraction: An Analysis of The ESC Heart Failure Long-Term Registry

Ovidiu Chioncel, Mitja Lainščak, Petar Seferović et al. · European Journal of Heart Failure · 2017 · 904 citations · Full text

Medicine, Cardiology, Cardiothoracic Surgery +13

Impact of Noncardiac Comorbidities on Morbidity and Mortality in a Predominantly Male Population With Heart Failure and Preserved Versus Reduced Ejection Fraction

Sameer Ather, Wenyaw Chan, Biykem Bozkurt et al. · Journal of the American College of Cardiology · 2012 · 686 citations · Full text

Medicine, Cardiology, Cardiothoracic Surgery +16