Table 1. Patient characteristics.
| Characteristic | All patients (n = 26) | SMA type 3 (n=15) | SMA type 2 (n=11) | P value |
| Age at assessment, years | 12.5 [23.75] | 13 [26.5] | 11 [21.0] | >0.05 |
| Age range, years | 2–50 | 3–50 | 6–31 | >0.05 |
| Male/female, n (%) | 13 (50.0)/13 (50.0) | 7 (46.7)/8 (53.3) | 6 (54.5)/5 (45.5) | >0.05 |
| Ambulatory, n (%) | 9 (34.6) | 9 (60.0) | 0 (0) | N/A |
| Body weight, kg | 29.85 [25.95] | 36.0 [22.8] | 26.2 [27.1] | >0.05 |
| SMN2 copy number, n (2/3/4) | 1/19/6 | 1/9/5 | 0/10/1 | >0.05 |
| Years between diagnosis and evaluation | 8 [9] | 7 [9] | 9 [13.5] | >0.05 |
Data given as median [IQR] or number (percentage).