Table 2.
Cyclic Alternating Pattern and Arousal Parameters
| Group |
|||||||
|---|---|---|---|---|---|---|---|
| 1 (n = 9) (TA and HVS) |
2 (n = 6) (HVS and rudimental spindles) |
3 (n = 8) (SW and spindles) |
Mann-Whitney test (P<) |
||||
| Mean | SD | Mean | SD | Mean | SD | 2 vs 3 | |
| CAP rate, % | NS | ||||||
| in HVS | 7.4 | 3.57 | |||||
| in NREM sleep | 12.9 | 2.21 | |||||
| A1,% | 69.7 | 31.34 | 85.2 | 11.5 | NS | ||
| A2,% | 17.4 | 18.97 | 10.3 | 7.1 | NS | ||
| A3,% | 4.3 | 3.76 | 4.4 | 5.34 | NS | ||
| A1 index, no./h | 6.7 | 3.81 | 19.8 | 4.55 | 0.005 | ||
| A2 index, no./h | 5.1 | 6.59 | 2.8 | 1.62 | NS | ||
| A3 index, no./h | 0.7 | 0.84 | 0.5 | 0.75 | NS | ||
| A mean duration, s | 6.4 | 0.94 | 6.8 | 2.92 | 7.7 | 1.54 | NS |
| B mean duration, s | 10.01 | 2.31 | 23.0 | 5.05 | 19.8 | 3.67 | NS |
| A1 mean duration, s | 6.0 | 2.63 | 6.5 | 1.51 | NS | ||
| A2 mean duration, s | 5.9 | 4.9 | 11.6 | 6.27 | NS | ||
| A3 mean duration, s | 10.6 | 8.84 | 13.4 | 16.7 | NS | ||
| Cortical arousal index | 16.0 | 3.28 | 11.9 | 10.65 | 10.5 | 3.49 | NS |
| Subcortical activation index | 2.6 | 2.09 | 3.1 | 0.84 | 4.2 | 2.75 | NS |
Abbreviations: HVS refers to high-voltage slow activity; SW, = slow waves; NS, not significant.