Table 3. The Wald test for the coefficients embodying the logistic regression model to account for the influence of sleep events on the probability of an increased frequency of lucid dreams during the pandemic.
For every predictor, the neutral level was used as a reference.
| Wald test | ||||
|---|---|---|---|---|
| Estimate | Std. error | z value | p | |
| (Intercept) | -2.2557 | 0.1597 | -14.129 | < 2e-16 |
| Nightmares: reduced | 0.3309 | 0.2805 | 1.180 | 0.23807 |
| Nightmares: increased | 1.1877 | 0.1384 | 8.584 | < 2e-16 |
| Dreams: reduced | 0.3046 | 0.1985 | 1.534 | 0.12503 |
| Dreams: increased | 1.3511 | 0.1388 | 9.38 | < 2e-16 |
| Singing while asleep: reduced | -0.3664 | 0.3768 | -0.972 | 0.33083 |
| Singing while asleep: increased | 1.2010 | 0.2288 | 5.249 | 1.53e-07 |
| Sleep quality: poor | -0.2532 | 0.1564 | -1.619 | 0.10540 |
| Sleep quality: good | -0.5064 | 0.1596 | -3.173 | 0.00151 |