Concepedia
Surgery · 2004 · 92 citations · 49 references
MedicineGeriatric MedicineSurgeryGeneral SurgeryGeriatricsAbdominal SurgeryAppendiceal SurgeryColorectal SurgeryLaparoscopic SurgeryMinimally Invasive SurgeryPostoperative ComplicationsLaparoscopic AppendectomyLaparoscopic ResectionLaparoscopic-assisted Surgery
49
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
Adapting a clinical comorbidity index for use with ICD-9-CM administrative databases
Richard A. Deyo · Journal of Clinical Epidemiology · 1992 · 10.5K citations
Education, Health Informatics, Clinical Classification Systems +12
R: A Language for Data Analysis and Graphics
Ross Ihaka, Robert Gentleman · Journal of Computational and Graphical Statistics · 1996 · 10.4K citations
Computing, Computer Science, Computer Graphics +9
A simulation study of the number of events per variable in logistic regression analysis
Peter Peduzzi, John Concato, Elizabeth Kemper et al. · Journal of Clinical Epidemiology · 1996 · 9K citations · Full text
Public Health, Biostatistics, Cardiology +17
THE EPIDEMIOLOGY OF APPENDICITIS AND APPENDECTOMY IN THE UNITED STATES
David G. Addiss, Nathan Shaffer, BARBARA S. FOWLER et al. · American Journal of Epidemiology · 1990 · 2.3K citations
Public Health, Internal Medicine, Surgery +10