Table 1.
Summary statistics of patient characteristics, in-hospital mortality, staffing measures, and hospital characteristics.
| Year 2003 | |
|---|---|
| Hospital characteristic | |
| Median cardiac procedural volume per hospital (P25; P75) | 316 (215; 575) |
| Nurse staffing: postoperative intensive care nursing units | |
| Median NHPPD (P25; P75) | 11.86 (10.3; 13.1) |
| Median proportion of RNs with BSN (P25; P75) | 95 (89; 97) |
| Nurse staffing: postoperative general nursing units | |
| Median NHPPD (P25; P75) | 2.91 (2.4; 3.5) |
| Median proportion of RNs with BSN (P25; P75) | 69 (61; 75) |
| Patient characteristics | |
| Percentage males | 70.6% |
| Median age (P25; P75) | 69 years (60; 75) |
| Percentage patients with heart valve procedures with heart catheterization | 5.6% |
| Percentage patients with heart valve procedures without heart catheterization | 26.5% |
| Percentage patients with CABG with heart catheterization | 19.5% |
| Percentage patients with CABG without heart catheterization | 48.4% |
| Median length of stay (P25; P75) | 11 (9; 15) |
| In-hospital mortality | |
| Percentage in-hospital mortality among patients with heart valve procedures with heart catheterization (APR-DRG 162) | 8.4% |
| Percentage in-hospital mortality among patients with heart valve procedures without heart catheterization (APR-DRG 163) | 4.2% |
| Percentage in-hospital mortality among patients with CABG with heart catheterization (APR-DRG 165) | 4.1% |
| Percentage in-hospital mortality among patients with CABG without heart catheterization (APR-DRG 166) | 2.1% |
| Percentage in-hospital mortality among patients in total study sample | 3.4% |