| Category | Number of people | Score after 3 days of training | Score after 30 days of training | t value | P value |
| Training nurses | 60 | 81.17 ± 8.46 | 95.67 ± 5.89 | −9.027 | <0.001 |
| Former isolation ward nurses | 29 | 81.59 ± 7.59 |
|
|
|
| t value |
| −0.233 |
|
|
|
| P value |
| 0.82 |
|
|
|