Table 3.
The PSG Indicators of Pre- and Post-Treatment in the Shumian Capsule Group and the Placebo Group
| Variable | Shumian Capsule Group (n =8) | Placebo Capsule Group (n=11) | P1 | P2 | P3 | ||
|---|---|---|---|---|---|---|---|
| Pre-Treatment | Post-Treatment | Pre-Treatment | Post-Treatment | ||||
| Total sleep time, min | 368.88 ± 18.65 | 445.31 ± 16.31 | 336.64 ± 28.27 | 356.73 ± 16.87 | 0.040 | 0.081 | 0.496 |
| Sleep latency, min | 27.70 (27.70) | 20.05 (21.23) | 33.90 (85.10) | 46.30 (78.40) | 0.111 | 0.073 | 0.239 |
| REM latency, min | 104.50 (135.63) | 89.50 (61.13) | 79.00 (49.00) | 131.00 (59.50) | 0.034 | 0.199 | 0.474 |
| Stage 1 sleep, min | 33.75 (23.75) | 47.00 (42.25) | 33.00 (40.00) | 53.00 (57.50) | 0.097 | 0.534 | 0.678 |
| Stage 2 sleep, min | 221.31 ± 13.95 | 276.38 ± 16.26 | 222.36 ± 25.37 | 205.86 ± 14.88 | 0.004 | 0.117 | 0.972 |
| Deep sleep, min | 30.50 (15.00) | 46.25 (48.63) | 33.50 (31.00) | 38.00 (41.50) | 0.001 | 0.222 | 0.882 |
| Stage REM, min | 60.25 (20.25) | 64.75 (10.25) | 34.5 (43.50) | 43.50 (43.00) | 0.010 | 0.130 | 0.053 |
| Sleep efficiency, % | 74.40 (16.93) | 85.60 (12.23) | 84.90 (19.90) | 75.00 (22.70) | 0.021 | 0.937 | 0.495 |
| Sleep maintenance efficiency, % | 78.04 ± 4.11 | 88.30 ± 2.50 | 88.15 ± 2.45 | 90.58 ± 2.22 | 0.056 | 0.158 | 0.039 |
Note: The normally distributed data were expressed as mean ± standard error and the nonnormally distributed data were expressed as median (interquartile range). P1, comparison of various PSG indicators between pre- and post-treatment in the Shumian capsule group; P2, comparison of various PSG indicators between pre- and post-treatment in the placebo group; P3, comparison of various PSG indicators between the Shumian capsule group and the placebo group before treatment.
Abbreviations: PSG, polysomnography; REM, rapid-eye-movement.