Table 14.
Results of multivariate logistic regression carried out among all participants.
| Variable | Insomnia Risk + Clinical Insomnia (vs. Norm) | ||
|---|---|---|---|
| OR (95% CI) | p ^ | ||
| Have you noticed that you are constantly tired? | No | 1.00 | - |
| Yes | 3.40 (1.03–11.17) | 0.0442 | |
| Are you under the care of an ophthalmologist? | No | 1.00 | - |
| Yes | 3.39 (1.16–9.88) | 0.0255 | |
| According to you. does shift work cause problems with memory? | No | 1.00 | - |
| Yes | 4.40 (1.08–18.00) | 0.0391 | |
| Does your shift work increase your susceptibility to accidents? | No | 1.00 | - |
| Yes | 4.73 (1.43–9.88) | 0.0255 | |
| Do you ever feel sleepy at work? | Several times a month | 1.00 | - |
| A few times a week | 0.26 (0.04–1.54) | 0.1375 | |
| Occasionally | 0.20 (0.06–0.65) | 0.0071 | |
| Never | NA | NA | |
| I spend my free time reading | No | 1.00 | - |
| Yes | 0.19 (0.06–0.58) | 0.0214 | |
| I spend my free time in gymnastics | No | 1.00 | - |
| Yes | 0.20 (0.06–0.69) | 0.0109 | |
| Variable | Clinical Insomnia (vs. Norm) | ||
| OR (95% CI) | p ^ | ||
| Are you under the care of an ophthalmologist? | No | 1.00 | - |
| Yes | 54.29 (4.98–591.68) | 0.0010 | |
| According to you. does shift work cause problems with memory? | No | 1.00 | - |
| Yes | 38.88 (3.56–424.57) | 0.0027 | |
| Do you have any problems with the cardiovascular system, such as palpitations? | No | 1.00 | - |
| Yes | 14.25 (1.87–108.39) | 0.0103 | |
| Do you ever feel sleepy at work? | Several times a month | 1.00 | - |
| A few times a week | 0.90 (0.10–8.20) | 0.9235 | |
| Occasionally | 0.06 (0.01–0.49) | 0.0080 | |
| Never | N/A | N/A | |
p ^—statistical significance of multivariate logistic regression; OR—odds ratio; 95% CI—95% confidence interval; N/A—Not Applicable.