Table 1 Baseline characteristics in the Department of Veterans Affairs and National Hospital Discharge Survey
CABS | PCI | |||||
|---|---|---|---|---|---|---|
Variable | VA (n = 58,807) | NHDS (n = 16,540) | NIS-1997 (n = 54,218) | VA (n = 51,509) | NHDS (n = 21,635) | NIS-1997 (n = 77,653) |
Age | 64 ± 9 | 64 ±11 | 65 ±10 | 62 ±10 | 61 ±12 | 62 ± 12 |
20–34 | < 1% | < 1% | < 1% | < 1% | 1% | 1% |
35–49 | 9% | 10% | 9% | 15% | 17% | 16% |
50–64 | 43% | 39% | 36% | 44% | 41% | 39% |
65–74 | 38% | 35% | 36% | 31% | 28% | 29% |
75+ | 11% | 16% | 19% | 10% | 13% | 16% |
Race | ||||||
White | 83% | 67% | 70% | 82% | 64% | 71% |
Black | 7% | 3% | 3% | 9% | 4% | 3% |
Other | 5% | 4% | 7% | 5% | 5% | 7% |
Unknown | 5% | 25% | 20% | 4% | 27% | 19% |
Geographic region | ||||||
Northeast | 14% | 18% | 25% | 11% | 16% | 25% |
Midwest | 21% | 33% | 21% | 23% | 33% | 22% |
South | 42% | 33% | 36% | 48% | 33% | 36% |
West | 22% | 17% | 17% | 18% | 18% | 16% |