| The places where the incidents occur | Cases (n = 236) | % |
| Operating room | 89 | 37.7 |
| Patient room | 60 | 25.4 |
| Intensive care unit | 34 | 14.4 |
| Hospital ward | 7 | 3 |
| Outpatient treatment room | 3 | 1.3 |
| Patient lavatory | 1 | 0.4 |
| Hospital corridor | 1 | 0.4 |
| Others | 41 | 17.4 |
| Department of radiology | 6 | 2.5 |
| Department of optical diagnosis and treatment | 14 | 5.9 |
| Others | 21 | 8.9 |