Table 1.
MANOVA comparisons for sleep architecture and t test results for spindle density.
| FEP | Control | F | P | η2 | |
|---|---|---|---|---|---|
| Sleep architecturea % | |||||
| N1 | 12.82 ± 5.07 | 10.27 ± 3.19 | 3.78 | .059 | .086 |
| N2 | 46.00 ± 6.48 | 51.29 ± 5.27 | 8.43 | .006* | .174 |
| N3 | 19.99 ± 7.63 | 20.81 ± 4.98 | .170 | .683 | .004 |
| REM | 21.16 ± 8.39 | 17.52 ± 3.81 | 3.25 | .079 | .075 |
| Spindle densityb | 0.78 ± 0.32 | 1.030 ± 0.38 | 2.145c | .038** | — |
Values are means ± SDs unless otherwise indicated. *P < .0125, **P < .05. FEP = first-episode psychosis; MANOVA = multivariate analysis of variance; N = non–rapid eye movement; REM = rapid eye movement. aFEP, n = 21; Control, n = 21. bSpindle density: FEP, n = 21; Control, n = 19. ct Test.