Appendix Table 1:

Elixhauser Comorbidities

Congestive Heart Failure

Cardiac Arrhythmias

Valvular Disease

Pulmonary Circulation Disorders

Peripheral Vascular Disease

Hypertension, Uncomplicated

Hypertension, Complicated

Paralysis

Other Neurologic Disorders

Chronic Pulmonary Disease

Diabetes, Uncomplicated

Diabetes, Complicated

Hypothyroidism

Renal Failure

Liver Disease

Peptic Ulcer Disease, Excluding Bleeding

AIDS/HIV

Lymphoma

Metastatic Cancer

Solid Tumor without Metastasis

Rheumatologic Arthritis/Collagen Vascular Disorders

Coagulation

Obesity

Weight Loss

Fluid and Electrolyte Disorders

Blood Loss Anemia

Deficiency Anemia

Alcohol Abuse

Drug Abuse

Psychoses

Depression