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Contingency tables
| SNF (n = 31,941) | IRF (n = 7941) | χ2 (df) | |
|---|---|---|---|
| No. readmitted | 4296 (13.5%) | 783 (9.9%) | 73.7a (1) |
| No. not readmitted | 27,645 (86.5%) | 7158 (90.1%) | |
| No. ventilator | 4152 (13.0%) | 3573 (45.0%) | 4168.7a (1) |
| No. no ventilator | 27,789 (87.0%) | 4368 (55.0%) | |
| No. ICU | 7190 (22.5%) | 4174 (52.6%) | 2819.1a (1) |
| No. no ICU | 24,751 (77.5%) | 3767 (47.4%) |
a All analyses P < 0.001.
ICU, intensive care unit.
