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Infectious rate with different disinfection methods in operating room (%)
| Group | Surgery site infection | Nonsurgery site infection | ||||
|---|---|---|---|---|---|---|
| Case number | Infection number | Infectious ratio | Case number | Infection number | Infectious ratio | |
| Laminar flow | 332 | 3 | 0.90 | 332 | 6 | 1.81 |
| Air cleaner | 928 | 28 | 2.02 | 928 | 19 | 2.05 |
| Ultraviolet sterilizer | 1068 | 68 | 6.37 | 1068 | 22 | 2.06 |
