Improvement in CRS-R subscale scores of patients with MCS who received DBS
| Variable | All (n=123) | DBS group (n=13) | Conservative group (n=110) | P value |
| CRS-R subscale | ||||
| Audio | 0 (0–1) | 2 (0–2.5) | 0 (−1 to 1) | <0.001 |
| Visual | 0 (0–1) | 2 (0–2) | 0 (0–1) | 0.005 |
| Motor | 0 (−1 to 1) | 2 (1–3.5) | 0 (−1 to 1) | <0.001 |
| Verbal | 0 (0–0) | 0 (0–1) | 0 (0–0) | 0.001 |
| Communication | 0 (0–0) | 1 (0–1.5) | 0 (0–0) | <0.001 |
| Arousal | 0 (0–0) | 1 (0–1) | 0 (0–0) | <0.001 |
P<0.05, significantly different.
CRS-R, Coma Recovery Scale-Revised; DBS, deep brain stimulation; MCS, minimally conscious state.