Table 1.
Characteristics of Hospitals with Varying COPD Readmission Rates
| Hospital Quartile of COPD Readmission Rate |
P Value | ||||
|---|---|---|---|---|---|
| Quartile 1 (N = 757) (%) | Quartile 2 (N = 753) (%) | Quartile 3 (N = 752) (%) | Quartile 4 (N = 756) (%) | ||
| COPD readmission rates | 17–21 | 21–22 | 22–23 | 23–28 | |
| Hospital characteristics | |||||
| Ownership | <0.001 | ||||
| Nonprofit | 68.0 | 58.6 | 58.5 | 61.5 | |
| Profit | 17.0 | 23.1 | 25.3 | 23.7 | |
| Government | 14.9 | 18.3 | 16.2 | 14.8 | |
| Hospital beds | 0.08 | ||||
| <200 | 69.1 | 70.7 | 71.9 | 65.5 | |
| 200–399 | 23.7 | 23.6 | 20.9 | 25.8 | |
| >400 | 7.3 | 5.7 | 7.2 | 8.7 | |
| COPD volume (quartiles) | <0.001 | ||||
| Lowest (<38 per year) | 19.3 | 28.3 | 29.5 | 10.6 | |
| Second (38–77) | 28.7 | 25.9 | 25.0 | 24.2 | |
| Third (78–133) | 27.1 | 25.2 | 24.3 | 27.7 | |
| Highest (134–920) | 25.0 | 20.6 | 21.1 | 37.6 | |
| Teaching status | <0.001 | ||||
| None | 69.0 | 69.5 | 69.2 | 64.4 | |
| Minor teaching | 23.7 | 19.5 | 17.0 | 20.2 | |
| Major teaching | 7.4 | 11.0 | 13.8 | 15.3 | |
| DSH patient percentage | 0.01 | ||||
| Lowest quartile | 28.0 | 25.9 | 22.4 | 22.8 | |
| Second quartile | 32.2 | 35.0 | 36.3 | 29.2 | |
| Third quartile | 17.5 | 15.8 | 15.9 | 17.9 | |
| Highest quartile | 22.3 | 23.3 | 25.5 | 30.1 | |
Definition of abbreviations: COPD = chronic obstructive pulmonary disease; DSH = disproportionate share.
All numbers are percentages. P values are from chi-squared analysis. Minor teaching includes less than 0.25 full-time equivalent residents/hospital bed; major teaching includes greater than 0.25 full-time equivalent/bed. DSH patient percentage is a measure used by CMS to quantify care provided to the poor, calculated as follows: (patient-days of Medicare and supplemental security income eligible patients)/(total Medicare patient-days) + (Medicaid, non-Medicare patient-days)/(total patient-days).