Table 4 Pittsburgh Sleep Quality Index (PSQI) scores
| Â | Baseline | Post nVNS | P-value |
|---|---|---|---|
PSQI global score | 7 (5.5, 11.5) | 5 (5, 8.5) | <0.001 |
PSQI subscores | Â | Â | Â |
Subjective sleep quality | 1 (1, 1) | 1 (1, 1) | 0.25 |
Sleep latency | 1 (0.5, 3.5) | 1 (0.5, 2) | 0.03 |
Sleep duration | 0 (0, 0) | 0 (0, 0) | N/A |
Sleep efficacy | 0 (0, 0.5) | 0 (0, 0.5) | N/A |
Sleep disturbance | 2 (1, 2) | 1 (1, 2) | 0.13 |
Sleep medication | 0 (0, 1) | 0 (0, 0.5) | 0.13 |
Daytime dysfunction | 2.5 (2, 4) | 2 (1, 2) | 0.004 |