Table 1.

Clinical data of patients with disorders of consciousness treated by cervical SCS.

No.	Diagnosis	Gender	Age (years)	Duration of DOC (months)	Postoperative time of SCS (days)	Etiology	Prognosis	GOS	CRS-R (T0)	CRS-R (T1)
Patient 1	VS	F	17	11	28	Head trauma	Favorable	3	7(1-1-2-1-0-2)	10(2-2-3-1-0-2)
Patient 2	VS	M	17	4	29	Head trauma	Unfavorable	2	6(1-0-2-1-0-2)	6(1-0-2-1-0-2)
Patient 3	VS	F	64	24	30	Cerebral hemorrhage	Unfavorable	2	7(1-1-2-1-0-2)	7(1-1-2-1-0-2)
Patient 4	VS	M	54	11	31	Cerebral hemorrhage	Favorable	3	8(1-2-2-1-0-2)	11(2-3-3-1-0-2)
Patient 5	VS	M	53	12	30	Cerebral trauma	Unfavorable	2	6(1-0-2-1-0-2)	7(1-1-2-1-0-2)
Patient 6	VS	M	42	6	29	Stroke	Unfavorable	2	7(1-1-2-1-0-2)	7(1-1-2-1-0-2)
Patient 7	MCS	F	41	3	29	Hypoxic ischemic encephalopathy	Favorable	3	8(1-2-2-1-0-2)	10(2-2-3-1-0-2)
Patient 8	VS	M	18	8	30	Hypoxic ischemic encephalopathy	Unfavorable	2	6(1-0-2-1-0-2)	7(1-1-2-1-0-2)
Patient 9	MCS	F	29	28	31	Hypoxic ischemic encephalopathy	Favorable	3	9(2-2-2-1-0-2)	11(2-3-3-1-0-2)

CRS-R: Coma Recovery Scale- Revised; GOS: Glasgow Outcome Scale; MCS: minimally conscious state; SCS: spinal cord stimulation; T0: time before SCS surgery; T1: 1 months after SCS surgery; VS: vegetative state. The CRS-R includes six subscales addressing auditory, visual, motor, oromotor, communication, and arousal functions, which are summed to yield a total score ranging from 0 to 23. Patient 5 were excluded from post-processing analysis in this study because his data were too noisy maybe resulted from large and excessively head movements during experiments.