| Group | Number of cases (n) | Insulin abnormalities | Infection, edema | Long-term inflammation | Incidence rate |
| Observation group | 30 | 1 | 0 | 0 | 3.33% (1/30) |
| Control group | 30 | 1 | 1 | 1 | 10% (3/30) |
| x2 |
|
|
|
| 6.667 |
| P |
|
|
|
| 0.010 |