Table 2.
Relationship between psychological distress General Health Questionnaire-28 (GHQ-28) and insomnia severity (Insomnia Severity Index, ISI), n = 1111.
| GHQ Somatic Symptoms | GHQ Anxiety and Insomnia | GHQ Social Dysfunction | GHQ Severe Depression | GHQ Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean (SD) |
Effect Size (η2), p 1 | Mean (SD) |
Effect Size (η2), p 1 | Mean (SD) |
Effect Size (η2), p 1 | Mean (SD) |
Effect Size (η2), p 1 | Mean (SD) |
Effect Size (η2), p 1 | |||
| ISI | 1 | Absence | 6.06 (3.64) | 0.30514 * | 8.33 (4.83) | 0.27759 * | 10.09 (4.29) | 0.11136 * | 4.87 (5.01) | 0.16575 * | 29.35 (14.78) | 0.27227 * |
| 2 | Subthreshold | 9.58 (4.05) | 12.57 (4.68) | 12.54 (4.16) | 8.53 (5.61) | 43.23 (15.22) | ||||||
| 3 | Moderate | 12.20 (3.91) | 15.08 (3.90) | 13.80 (4.34) | 10.43 (5.79) | 51.51 (14.75) | ||||||
| 4 | Severe | 14.78 (4.20) | 17.27 (3.83) | 13.90 (4.04) | 10.76 (6.36) | 56.71 (14.41) | ||||||
|
Post hoc
analysis |
Statistically significant, except | - | - | 2.4; 3.4 | - | |||||||
1p-value: * ≤ 0.001.