TABLE 3.
The percentage distribution of alcohol consumption, hypnotic use, and mental health within each specific insomnia subtype (n = 64 503).
| SOL- | WASO- | EMA- | SOL + WASO- | SOL + EMA- | WASO + EMA- | SOL + WASO + | Chi-square | p-valued | |
| insomnia | insomnia | insomnia | insomnia | -insomnia | -insomnia | EMA-insomnia | (df)c | ||
| Alcohol consumption | |||||||||
| No | 29.7% | 32.7% | 33.9% | 33.1% | 34.9% | 31.4% | 35.9% | 901.7 (24) | <0.0005 |
| Rarely | 35.3% | 30.4% | 30.5% | 31.3% | 33.4% | 25.1% | 27.1% | ||
| 1–2 times per week | 29.6% | 26.7% | 26.9% | 28.5% | 26.1% | 30.7% | 27.6% | ||
| 3–5 times per week | 4.9% | 8.6% | 7.2% | 6.4% | 4.8% | 10.2% | 7.6% | ||
| Daily | 0.6% | 1.7% | 1.4% | 0.8% | 0.8% | 2.6% | 1.7% | ||
| Use of hypnotics | |||||||||
| Yes | 11.4% | 7.6% | 8.6% | 16.2% | 16.6% | 12.5% | 26.8% | 2046.0 (6) | <0.0005 |
| No | 88.6% | 92.4% | 91.4% | 83.8% | 83.4% | 87.5% | 73.2% | ||
| Mental health | |||||||||
| Possible anxiety (HAD-A ≥ 8)a | 61.6% | 50.8% | 55.8% | 65.3% | 68.1% | 54.5% | 67.7% | 656.8 (6) | <0.0005 |
| Possible depression (HAD-D ≥ 8)b | 34.0% | 32.5% | 34.1% | 40.4% | 41.1% | 33.3% | 46.0% | 756.8 (6) | <0.0005 |
SOL-insomnia = Sleep onset latency insomnia, WASO-insomnia = Wake after sleep onset insomnia, EMA-insomnia = Early morning awakening insomnia. Percentages adding up to 100% in each column. aHAD-A = Hospital Anxiety and Depression Scale—Anxiety subscale, bHAD-D = Hospital Anxiety and Depression Scale—Depression subscale, cDegrees of freedom, dPearson Chi-square.