Table 2 SMN1 copy numbers in patients with different clinical types of SMA
Clinical types | Type I | Type II | Type III | Type IV | Total |
|---|---|---|---|---|---|
0 | 168 (40.10%) | 121 (28.88%) | 99 (23.63%) | 16 (3.82%) | 404 (96.42%) |
≥1 | 9 (2.18%) | 5 (1.19%) | 1 (0.24%) | 0 (0.00%) | 15 (3.58%) |
Total | 177 (42.24%) | 126 (30.07%) | 100 (23.87%) | 16 (3.82%) | 419 (100.00%) |