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The incidence of cardiac arrest according to ASA physical status and surgical procedure.
| Anesthetics | Cardiac arrests | |||
| n | (%) | n | Incidence∗ | |
| (per 10,000) | ||||
| ASA physical status | ||||
| I | 28,185 | 23.85 | 1 | 0.35a |
| II | 77,128 | 65.28 | 8 | 1.04 |
| III | 11,556 | 9.78 | 7 | 6.06 |
| IV | 1114 | 0.94 | 20 | 179.53 |
| V | 169 | 0.15 | 5 | 295.86a |
| Surgical procedures | ||||
| Elective | 98,561 | 83.42 | 16 | 1.62b |
| Emergency | 19,591 | 16.58 | 25 | 12.76b |
