Table 1.
Characteristics of Hospital Cohorts
| Massachusetts Hospitals | Other State Hospitals | |
|---|---|---|
| N | 62 | 3,676 |
| Ownership | ||
| Government run | 0.05 | 0.20 |
| For-profit | 0.02 | 0.20 |
| Not-for-profit | 0.94 | 0.61 |
| Number of beds | ||
| 1–99 | 0.23 | 0.33 |
| 100–399 | 0.65 | 0.60 |
| 400+ | 0.12 | 0.07 |
| Urban | 0.88 | 0.68 |
| Medical school affiliation | 0.77 | 0.29 |
| Member of Council of Teaching Hospitals | 0.22 | 0.08 |
| Proportion of total discharges from Medicaid patients, (mean) | 0.13 | 0.17 |
| Proportion of total discharges from Medicare patients (mean) | 0.49 | 0.45 |
| Composite process performance, mean (between-hospital SD, within-hospital SD) | ||
| Pneumonia | 89.2 (2.8, 4.3) | 88.4 (4.9, 5.0) |
| Surgical infection prevention | 86.3 (6.2, 8.8) | 81.1 (10.4, 11.0) |
| Difficulty index, mean (between-hospital SD, within-hospital SD) | ||
| Pneumonia | 88.1 (0.8, 3.3) | 88.1 (1.0, 3.2) |
| Surgical infection prevention | 81.1 (2.2, 7.2) | 80.7 (3.1, 7.3) |
Note. Table includes data from hospitals in at least one model.
Data on hospital characteristics come from the 2005 American Hospital Association Annual Survey.