Table 2.
Comparison measured parameters at baseline and postintervention in the active and sham groups.
| Variable | Baseline | Postintervention | p value | 95% CI |
|---|---|---|---|---|
| CRS-R total score | ||||
| Active group | 7.160 ± 2.285 | 9 (7.5-13) | <0.001b | — |
| Sham group | 6.880 ± 2.279 | 8 (6 -9) | <0.001b | — |
| GCS total score | ||||
| Active group | 8 (7-8) | 8 (8-9) | <0.001b | — |
| Sham group | 8 (7-8) | 8 (7.5-8) | 0.007b | — |
| Latencies of N20 component (ms) | ||||
| Active group | 22.321 ± 0.785 | 21.627 ± 0.733 | <0.001a | 0.490, 0.900 |
| Sham group | 22.290 ± 0.729 | 22.134 ± 0.733 | 0.113a | -0.040, 0.350 |
| N20-P25 amplitudes (μV) | ||||
| Active group | 1.556 ± 1.070 | 3.099 ± 1.744 | <0.001a | -2.012, -1.076 |
| Sham group | 1.643 ± 0.965 | 2.436 ± 1.007 | <0.001a | -1.163, -0.422 |
| BAEP grade (number) | ||||
| Active group (grade-I/II/III/IV) | 0/13/9/3 | 2/18/4/1 | 0.022b | — |
| Sham group (grade-I/II/III/IV) | 0/12/9/4 | 0/14/8/3 | 0.013b | — |
Data are presented as mean ± standard deviation or median (interquartile range). Abbreviations: CRS-R: Coma Recovery Scale-Revised; GCS: Glasgow Coma Scale; BAEP: brainstem auditory-evoked potential; CI: confidence intervals. Significance level at p value < 0.05; p value refers to the results of atwo-tailed unpaired Student's t-test and the bpaired Wilcoxon rank-sum test.