Table 1.
Arbitrary categorization of hospital length of stay (LOS), with the number of cases entering that time interval, days at risk, deaths, and discharges. Days at risk exclude days for patients who have died or been discharged prior to or during a given time interval, and are used as a denominator to calculate daily incidence rates for each outcome
| LOS | Number entering | Days at risk | Deaths (rate) | Discharges (rate) |
|---|---|---|---|---|
| 1 | 2,646 | 2,646 | 64 (0.0242) | 495 (0.1871) |
| 2 | 2,087 | 2,087 | 13 (0.0062) | 300 (0.1437) |
| 3 | 1,774 | 1,774 | 6 (0.0034) | 288 (0.1623) |
| 4 | 1,480 | 1,480 | 5 (0.0038) | 251 (0.1696) |
| 5–6 | 1,224 | 2,256 | 6 (0.0027) | 345 (0.1530) |
| 7–9 | 873 | 2,217 | 7 (0.0032) | 323 (0.1457) |
| 10–14 | 543 | 2,119 | 11 (0.0052) | 247 (0.1166) |
| 15–22 | 285 | 1,647 | 8 (0.0049) | 139 (0.0844) |
| 23–43 | 138 | 1,790 | 4 (0.0022) | 80 (0.0447) |
| 44–172 | 54 | 1,465 | 4 (0.0027) | 50 (0.0341) |