Table 2: Trend in disability score over time across the study group.
| Category | Mean (SD) | Median (IQR) | P-value* |
| IAS Group | |||
| Disability score at week 0 | 72.96 (21.011) | 73.00 | < 0.001 |
| Disability score at week 2 | 63.16 (25.029) | 66.00 | |
| Disability score at week 4 | 53.16 (25.029) | 56.00 | |
| Disability score at week 8 | 43.00 (18.062) | 42.00 | |
| Disability score at week 12 | 36.16 (16.474) | 37.00 | |
| SSNB Group | |||
| Disability score at week 0 | 73.88 (24.492) | 74.00 | < 0.001 |
| Disability score at week 2 | 36.36 (18.060) | 34.00 | |
| Disability score at week 4 | 27.68 (11.302) | 28.00 | |
| Disability score at week 8 | 18.08 (9.416) | 16.00 | |
| Disability score at week 12 | 13.08 (9.416) | 11.00 | |
Note: *Friedman test.