Table A.3.
The relationship between cumulative hospital days and rate of readmission within 30 days (all-cause) in the UHC CDB (2006–2011, all hospitals). Patients were binned into percentile bands by their cumulative hospital days. Planned readmissions (defined in Results), newborn encounters and psychiatric encounters were included in this analysis. Readmissions are clustered in the upper quartile.
| Percentile band |
Hospital days |
Max length of stay |
Number of encounters |
Number of readmissions |
Readmission rate |
Percent of overall readmissions |
|---|---|---|---|---|---|---|
| 0–10 | 1,611,384 | 1 | 1,611,384 | 87 | 0.0% | 0.0% |
| 10–40 | 3,583,236 | 2 | 1,873,606 | 20,480 | 1.1% | 1.0% |
| 40–55 | 8,265,025 | 4 | 2,777,131 | 78,616 | 2.8% | 4.0% |
| 55–65 | 3,388,305 | 5 | 896,237 | 50,695 | 5.7% | 2.6% |
| 65–75 | 8,530,036 | 8 | 1,857,092 | 158,255 | 8.5% | 8.0% |
| 75–85 | 10,010,465 | 13 | 1,717,041 | 242,162 | 14.1% | 12.3% |
| 85–95 | 20,283,704 | 30 | 2,568,866 | 562,540 | 21.9% | 28.6% |
| 95–98 | 17,396,822 | 69 | 1,629,260 | 516,485 | 31.7% | 26.2% |
| 99–100 | 11,439,212 | 1,401 | 769,171 | 340,538 | 44.3% | 17.3% |
| Grand total | 84,508,189 | -- | 15,699,788 | 1,969,858 | -- | 100.0% |