Table 1.
Patient Characteristics
| AMA (N = 32,819) | Community (N = 1,898,128) | |
|---|---|---|
| Mean age, years (range) | 54.4 (17–111) | 64.4 (17–116) |
| Male (%) | 31,769 (96.8) | 1,813,875 (95.6) |
| Mean income, $US (SD) | 17,172 (32,455) | 21,311 (40,700) |
| Race (%) | ||
| White | 21,832 (66.5) | 1,310,202 (69.0) |
| Black | 7,275 (22.2) | 348,085 (18.3) |
| Hispanic | 1,726 (5.3) | 101,538 (5.3) |
| Native American | 196 (0.6) | 8,975 (0.5) |
| Asian/Pacific Islander | 154 (0.5) | 11,035 (0.6) |
| Unknown | 1,636 (5.0) | 118,293 (6.2) |
| 30-day Readmission (%) | 5,817 (17.7) | 207,793 (11.0) |
| 30-day Mortality (%) | 247 (0.75) | 11,563 (0.61) |
| Co-morbidities (%) | ||
| Alcohol | 7,748 (23.6) | 158,791 (8.37) |
| Liver disease | 3,765 (11.5) | 111,552 (5.88) |
| Psychosis | 1,627 (4.96) | 46,421 (2.45) |
| Fluid disorder | 4,959 (15.1) | 253,666 (13.4) |
| Neurological disease | 1,922 (5.86) | 92,044 (4.85) |
| Coagulation | 1,063 (3.24) | 45,028 (2.37) |
| Myocardial infarction | 2,037 (6.21) | 104,270 (5.49) |
| Deficiency anemia | 1,343 (4.09) | 69,286 (3.65) |
| Complicated diabetes* | 1,887 (5.75) | 114,045 (6.01) |
| Lymphoma | 356 (1.08) | 27,664 (1.46) |
| Cerebrovascular disorder | 1,645 (5.01) | 123,600 (6.51) |
| Chronic obstructive pulmonary disease | 6,760 (20.6) | 413,702 (21.8) |
| Metastatic cancer | 834 (2.54) | 78,980 (4.16) |
| Congestive heart failure | 4,070 (12.4) | 269,017 (14.2) |
| Arrhythmia | 4,512 (13.8) | 323,316 (17.0) |
| Malignancy | 2,819 (8.59) | 272,498 (14.4) |
p-values: all p < 0.001, except *p = 0.05