Exhibit 4.
Patient demographics and hospital characteristics of low-quality hospitals in segregated versus non-segregated hospital referral regions (HRRs).
| Procedure | Hospital Referral Region (HRR) Segregation | ||
|---|---|---|---|
| Low | Medium | High | |
| Coronary artery bypass grafting | |||
| Patient demographics | |||
| N | 6,657 | 11,842 | 12,357 |
| Black | 5.4% | 5.7% | 8.6% |
| Low socioeconomic position | 29% | 30% | 27% |
| Urban location | 65.3% | 67.2% | 67.8% |
| Hospital characteristics | |||
| Total Staffed Beds | 314 | 402 | 436 |
| Inpatient Days | 77,405 | 104,797 | 112,259 |
| ACS Approved Cancer Program | 62% | 69% | 66% |
| Cardiac catheterization | 83% | 91% | 92% |
| Trauma Center | 63% | 65% | 60% |
| Abdominal aortic aneurysm repair | |||
| Patient demographics | |||
| N | 2,571 | 2,779 | 5,093 |
| Black | 4.7% | 4.5% | 8.0% |
| Low socioeconomic position | 25% | 25% | 13.9% |
| Urban location | 71% | 69% | 82% |
| Hospital characteristics | |||
| Total Staffed Beds | 332 | 265 | 333 |
| Inpatient Days | 90,067 | 64,917 | 87,297 |
| ACS Approved Cancer Program | 67% | 53% | 69% |
| Cardiac catheterization | 84% | 84% | 78% |
| Trauma Center | 63% | 58% | 50 % |
| Lung cancer resection | |||
| Patient demographics | |||
| N | 1,561 | 2,218 | 3,037 |
| Black (%) | 6.3% | 5.7% | 9.1% |
| Low socioeconomic position | 32% | 25% | 22% |
| Urban location | 64% | 68% | 73% |
| Hospital characteristics | |||
| Total Staffed Beds | 409 | 490 | 449 |
| Inpatient Days | 108,022 | 127,727 | 118,513 |
| ACS Approved Cancer Program | 74% | 75% | 71% |
| Cardiac catheterization | 86% | 89% | 81% |
| Trauma Center | 67% | 52% | 53% |
National Medicare population, 2005–2008.