Daily movement patterns and biological markers among adults in the United States

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

Physical Activity in the United States Measured by Accelerometer

Richard P. Troiano, David Berrigan, Kevin W. Dodd et al. · Medicine & Science in Sports & Exercise · 2008 · 7.7K citations

Public Health, Child Health, Adolescent Health +14

Updating and Validating the Charlson Comorbidity Index and Score for Risk Adjustment in Hospital Discharge Abstracts Using Data From 6 Countries

Hude Quan, Bing Li, Chantal Marie Couris et al. · American Journal of Epidemiology · 2011 · 5.9K citations · Full text

Health Professions, Health Services Administration, Clinical Classification Systems +16

Amount of Time Spent in Sedentary Behaviors in the United States, 2003-2004

Charles E. Matthews, Kong Y. Chen, Patty S. Freedson et al. · American Journal of Epidemiology · 2008 · 2.7K citations · Full text

Public Health, Health Behavior, Population Health Sciences +15

Too little exercise and too much sitting: Inactivity physiology and the need for new recommendations on sedentary behavior

Marc T. Hamilton, Geneviève N. Healy, David W. Dunstan et al. · Current Cardiovascular Risk Reports · 2008 · 855 citations

Education, Health Behavior, Kinesiology +17