| Group | Urinary tract infection | Lung infection | Abdominal infection | Phlebitis | A combined |
| Observation group | 0(0. 00) | 0(0. 00) | 2 (1.15) | 2 (1.25) | 2 (0.07) |
| The control group | 1(1. 30) | 3 (4.13) | 4 (2.14) | 4 (0.19) | 13 (11.36) |
| T |
|
|
|
| 5.148 |
| P |
|
|
|
| 0.011 |