Anticipated number of cases during specified number of shifts and the number of days to experience the specified number of cases with 95% confidence. For trauma/general surgery, significantly more cases occurred in the summer season for all institutions except for Institution 3
| Trauma/general surgery | ||||
| Institution 1 | Institution 2 | Institution 3 | Institution 4 | |
| Number of 24-hour shifts | Expected number of urgent cases (95% CI) | |||
| 5 | 7.7 (3 to 13) | 4.0 (1 to 8) | 3.9 (0 to 9) | 3 (0 to 9) |
| 10 | 15.3 (8 to 23) | 8.0 (3 to 14) | 7.7 (2 to 15) | 7 (1 to 14) |
| 12 | 18.3 (11 to 27) | 9.7 (4 to 16) | 9.3 (3 to 17) | 8 (2 to 16) |
| 20 | 30.6 (20 to 42) | 16.1 (9 to 24) | 15.5 (7 to 25) | 14 (6 to 24) |
| Minimum number of cases | 24-hour shifts resulting in a 95% certainty of experiencing at least the stated minimum number of cases | |||
| 5 | 6 | 12 | 13 | 16 |
| 10 | 11 | 20 | 22 | 26 |
| 20 | 19 | 35 | 38 | 44 |