Table 1 The basic information of patients in two groups
| Characteristic | Group A(15 patients) | Group B(8 patients) | p |
|---|---|---|---|
| Age | 47.6.5 ± 8.4 | 50.7 ± 13.4 | 0.532 |
|
Sexal(m/w) pathogenic level | 10/5 | 6/2 | 0.888 |
| C3–4 | 1 | 0 | |
| C4–5 | 4 | 2 | |
| C5–6 | 7 | 5 | |
| C6–7 | 3 | 1 |