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. Author manuscript; available in PMC: 2015 Oct 23.
Published in final edited form as: Ann Intern Med. 2009 May 19;150(10):696–704. doi: 10.7326/0003-4819-150-10-200905190-00007

Table 1.

Characteristics of patients (n=81289)

Value
Patient age (Mean, standard deviation) 65.0 (10.9)
Male (n, %) 58398 (72%)
Race (n, %)
  White 61621 (76%)
  Other 11434 (14%)
  Black 5500 (7%)
  Hispanic 2734 (3%)
Marital status (n, %)
  Married 51094 (63%)
  Single 8646 (11%)
  Widowed 8439 (10%)
  Other 6899 (8%)
  Divorced 6211 (8%)
Primary payor (n, %)
  Medicare 43164 (53%)
  Managed Care 21987 (27%)
  Indemnity 8177 (10%)
  Medicaid 3614 (4%)
  Uninsured 2575 (3%)
  Other 1057 (1%)
  Capitated 715 (1%)
Discharge status (n, %)
  To home 43588 (54%)
  Home health care 24444 (30%)
  Skilled nursing facility 8028 (10%)
  Rehabilitation 2574 (3%)
  Death in hospital 1738 (2%)
  Transfer 399 (0.5%)
  Other 443 (0.5%)
  Hospice 75 (0.1%)
Any intensive care unit charges (n, %) 60392 (74%)
All patient refined (APR)™ diagnosis-related group risk of mortality (n, %)
  1 8702 (11%)
  2 40789 (50%)
  3 23747 (29%)
  4 8051 (10%)
All patient refined (APR)™ diagnosis-related group severity score (n, %)
  1 27388 (34%)
  2 32065 (39%)
  3 15883 (20%)
  4 5953 (7%)
Comorbidities (n, %)
  Hypertension 58492 (72%)
  Diabetes without chronic complications 25423 (31%)
  Chronic pulmonary disease 18974 (23%)
  Fluid and electrolyte disorders 12815 (16%)
  Deficiency anemia 11981 (15%)
  Obesity 11636 (14%)
  Peripheral vascular disease 11034 (14%)
  Coagulopathy 6335 (8%)
  Hypothyroidism 6038 (7%)
  Diabetes with chronic complications 4623 (6%)
  Renal failure 4308 (5%)
  Depression 3781 (5%)
  Other neurological disorders 1882 (2%)
  Alcohol abuse 1663 (2%)
  Rheumatoid arthritis or collagen vascular disease 1191 (1%)
  Psychoses 1006 (1%)
  Paralysis 949 (1%)
  Solid tumor without metastasis 918 (1%)
  Congestive Heart Failure 443 (0.5%)
Internal mammary graft not used (n, %) 9938 (12%)
Characteristics of site of care
Teaching hospital (n, %) 30295 (37%)
Urban hospital 76079 (94%)
Rural hospital 5210 (6%)
Region (n, %)
  South 46768 (58%)
  Midwest 14082 (17%)
  Northeast 11201 (14%)
  West 9237 (11%)
Number of beds (n, %)
  100–199 2952 (4%)
  200–299 7469 (9%)
  300–399 16678 (21%)
  400–499 13373 (16%)
  >=500 40817 (50%)
Outcomes (n, %)
  Mortality up to 30 days 1825 (2%)
  Readmission up to 30 days 8653 (11%)