Table 3.
Level of insomnia severity by anxiety diagnosis.
| No diagnosis (n = 21) |
Worried well (n = 33) |
GAD (n = 31) |
GAD and depression (n = 25) |
|
|---|---|---|---|---|
| No clinically significant insomnia (ISI score 0–7) | 66.7% | 30.3% | 9.7% | 4.0% |
| Subthreshold insomnia (ISI score 8–14) | 28.5% | 48.5% | 38.7% | 28.0% |
| Moderate clinical insomnia (ISI score 15–21) | 4.8% | 15.1% | 48.4% | 56.0% |
| Severe clinical insomnia (ISI score 21–28) | 0% | 6.0% | 3.2% | 12.0% |
| Moderate or severe clinical insomnia (ISI score 15–28) | 4.8% | 21.1% | 51.6% | 68.0% |
Note. χ2 (9) = 42.40, p < .001.