One-way ANCOVA’s ORP indices as dependent variables and insomnia and control groups as independent variables in qualitative criteria
| Levene’s . | ANCOVAsa . | Insomnia (n = 162) . | Control (n = 272) . | Insomnia vs Controlb . | ||||
|---|---|---|---|---|---|---|---|---|
| F (1, 432) . | F (1, 430) . | η2 . | M . | SD . | M . | SD . | Cohen’s d . | |
| Wake ORP | 0.004 | 6.90** | 0.58 | 2.17 | 0.12 | 2.14 | 0.12 | 0.14 |
| NREM ORP | 0.84 | 0.74 | 0.76 | 0.93 | 0.21 | 0.91 | 0.23 | 0.14 |
| N1 ORP | 0.62 | 3.01 | 0.96 | 1.37 | 0.23 | 1.33 | 0.25 | 0.19 |
| N2 ORP | 0.75 | 0.99 | 0.56 | 0.93 | 0.23 | 0.91 | 0.25 | 0.12 |
| N3 ORP | 0.94 | 0.0004 | 0.003 | 0.54 | 0.19 | 0.54 | 0.22 | -0.03 |
| REM ORP | 0.65 | 10.86** | 0.99 | 1.36 | 0.31 | 1.26 | 0.32 | 0.24 |
| TRT ORP | 0.90 | 12.97*** | 0.99 | 1.27 | 0.26 | 1.18 | 0.28 | 0.25 |
| ORP-9 | 1.13 | 6.27* | 0.92 | 1.25 | 0.27 | 1.18 | 0.29 | 0.29 |
| Levene’s . | ANCOVAsa . | Insomnia (n = 162) . | Control (n = 272) . | Insomnia vs Controlb . | ||||
|---|---|---|---|---|---|---|---|---|
| F (1, 432) . | F (1, 430) . | η2 . | M . | SD . | M . | SD . | Cohen’s d . | |
| Wake ORP | 0.004 | 6.90** | 0.58 | 2.17 | 0.12 | 2.14 | 0.12 | 0.14 |
| NREM ORP | 0.84 | 0.74 | 0.76 | 0.93 | 0.21 | 0.91 | 0.23 | 0.14 |
| N1 ORP | 0.62 | 3.01 | 0.96 | 1.37 | 0.23 | 1.33 | 0.25 | 0.19 |
| N2 ORP | 0.75 | 0.99 | 0.56 | 0.93 | 0.23 | 0.91 | 0.25 | 0.12 |
| N3 ORP | 0.94 | 0.0004 | 0.003 | 0.54 | 0.19 | 0.54 | 0.22 | -0.03 |
| REM ORP | 0.65 | 10.86** | 0.99 | 1.36 | 0.31 | 1.26 | 0.32 | 0.24 |
| TRT ORP | 0.90 | 12.97*** | 0.99 | 1.27 | 0.26 | 1.18 | 0.28 | 0.25 |
| ORP-9 | 1.13 | 6.27* | 0.92 | 1.25 | 0.27 | 1.18 | 0.29 | 0.29 |
N = 434; a: covariates = sex, age; b: Significant values from the post-hoc test following ANCOVAs are shown in bold; TRT ORP = total recording ORP, as measured by rate of decline in ORP following arousals; *p < .05, **p < .01, ***p < .001.
One-way ANCOVA’s ORP indices as dependent variables and insomnia and control groups as independent variables in qualitative criteria
| Levene’s . | ANCOVAsa . | Insomnia (n = 162) . | Control (n = 272) . | Insomnia vs Controlb . | ||||
|---|---|---|---|---|---|---|---|---|
| F (1, 432) . | F (1, 430) . | η2 . | M . | SD . | M . | SD . | Cohen’s d . | |
| Wake ORP | 0.004 | 6.90** | 0.58 | 2.17 | 0.12 | 2.14 | 0.12 | 0.14 |
| NREM ORP | 0.84 | 0.74 | 0.76 | 0.93 | 0.21 | 0.91 | 0.23 | 0.14 |
| N1 ORP | 0.62 | 3.01 | 0.96 | 1.37 | 0.23 | 1.33 | 0.25 | 0.19 |
| N2 ORP | 0.75 | 0.99 | 0.56 | 0.93 | 0.23 | 0.91 | 0.25 | 0.12 |
| N3 ORP | 0.94 | 0.0004 | 0.003 | 0.54 | 0.19 | 0.54 | 0.22 | -0.03 |
| REM ORP | 0.65 | 10.86** | 0.99 | 1.36 | 0.31 | 1.26 | 0.32 | 0.24 |
| TRT ORP | 0.90 | 12.97*** | 0.99 | 1.27 | 0.26 | 1.18 | 0.28 | 0.25 |
| ORP-9 | 1.13 | 6.27* | 0.92 | 1.25 | 0.27 | 1.18 | 0.29 | 0.29 |
| Levene’s . | ANCOVAsa . | Insomnia (n = 162) . | Control (n = 272) . | Insomnia vs Controlb . | ||||
|---|---|---|---|---|---|---|---|---|
| F (1, 432) . | F (1, 430) . | η2 . | M . | SD . | M . | SD . | Cohen’s d . | |
| Wake ORP | 0.004 | 6.90** | 0.58 | 2.17 | 0.12 | 2.14 | 0.12 | 0.14 |
| NREM ORP | 0.84 | 0.74 | 0.76 | 0.93 | 0.21 | 0.91 | 0.23 | 0.14 |
| N1 ORP | 0.62 | 3.01 | 0.96 | 1.37 | 0.23 | 1.33 | 0.25 | 0.19 |
| N2 ORP | 0.75 | 0.99 | 0.56 | 0.93 | 0.23 | 0.91 | 0.25 | 0.12 |
| N3 ORP | 0.94 | 0.0004 | 0.003 | 0.54 | 0.19 | 0.54 | 0.22 | -0.03 |
| REM ORP | 0.65 | 10.86** | 0.99 | 1.36 | 0.31 | 1.26 | 0.32 | 0.24 |
| TRT ORP | 0.90 | 12.97*** | 0.99 | 1.27 | 0.26 | 1.18 | 0.28 | 0.25 |
| ORP-9 | 1.13 | 6.27* | 0.92 | 1.25 | 0.27 | 1.18 | 0.29 | 0.29 |
N = 434; a: covariates = sex, age; b: Significant values from the post-hoc test following ANCOVAs are shown in bold; TRT ORP = total recording ORP, as measured by rate of decline in ORP following arousals; *p < .05, **p < .01, ***p < .001.
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