β | SE | Wald-square | Odds | 95% CI | P value | ||
---|---|---|---|---|---|---|---|
(A) Univariate logistic regression analysis | |||||||
General information | Age | 0.024 | 0.023 | 1.131 | 1.024 | 0.980–1.070 | 0.296 |
Body mass index | 0.047 | 0.043 | 1.191 | 1.048 | 0.964–1.139 | 0.878 | |
Frequency of overseas trips | 0.007 | 0.050 | 0.022 | 1.007 | 0.914–1.111 | 0.882 | |
Daily schedule | Earliest training-practice start time | − 0.063 | 0.045 | 1.918 | 0.939 | 0.859–1.026 | 0.166 |
Latest training-practice end time | 0.012 | 0.056 | 0.050 | 1.013 | 0.908–1.129 | 0.823 | |
Hours of training-practice per week | 0.006 | 0.009 | 0.458 | 1.006 | 0.988–1.025 | 0.499 | |
Bed time | 0.141 | 0.125 | 1.280 | 1.151 | 0.902–1.470 | 0.258 | |
Getting up time | − 0.277 | 0.127 | 4.794 | 0.758 | 0.591–0.971 | 0.029 | |
Time in bed | − 0.378 | 0.120 | 9.895 | 0.685 | 0.542–0.867 | 0.002 | |
Nap duration | 0.361 | 0.233 | 2.411 | 1.435 | 0.910–2.265 | 0.121 | |
Clinical information | Loud snoring | − 0.024 | 0.251 | 0.009 | 0.976 | 0.597–1.596 | 0.923 |
Sleep apnea | 1.061 | 0.772 | 1.888 | 2.889 | 0.636–13.121 | 0.169 | |
Legs twitching or jerking during sleep | 0.336 | 0.227 | 2.183 | 1.399 | 0.896–2.185 | 0.140 | |
Disorientation or confusion during sleep | 0.316 | 0.350 | 0.814 | 1.371 | 0.691–2.723 | 0.367 | |
Mood | Depressive mood | 1.036 | 0.257 | 16.218 | 2.817 | 1.702–4.663 | 0.000 |
Sleep hygiene | Being bathed in sunlight after getting up | 0.187 | 0.225 | 0.693 | 1.206 | 0.776–1.873 | 0.405 |
Eating breakfast every morning | 0.848 | 0.301 | 7.908 | 2.334 | 1.293–4.214 | 0.005 | |
Not taking a nap after 15:00 | 0.343 | 0.224 | 2.342 | 1.409 | 0.908–2.186 | 0.767 | |
Not going out to bright places after 21:00 | 0.086 | 0.224 | 0.147 | 1.090 | 0.703–1.689 | 0.701 | |
Avoid using electronic devices just before bed time | 0.772 | 0.410 | 3.546 | 2.164 | 0.969–4.835 | 0.060 | |
Not drinking alcohol to induce sleep | 1.024 | 0.329 | 9.677 | 2.784 | 1.461–5.308 | 0.002 | |
Not thinking about troubles in bed | 0.880 | 0.235 | 13.963 | 2.410 | 1.519–3.823 | 0.000 | |
Keeping the bedroom quiet and comfortable | 0.624 | 0.340 | 3.369 | 1.865 | 0.959–3.630 | 0.066 | |
Using a comfortable mattress and bedclothing | 0.454 | 0.234 | 3.776 | 1.574 | 0.996–2.489 | 0.052 | |
Preventing an irregular getting up time (within 2 h) | 0.701 | 0.230 | 9.317 | 2.015 | 1.285–3.159 | 0.002 | |
(B) Multiple logistic regression analysis | |||||||
Daily schedule | Getting up time | − 0.353 | 0.169 | 4.390 | 0.702 | 0.505–0.977 | 0.036 |
Time in bed | − 0.173 | 0.154 | 1.257 | 0.842 | 0.622–1.138 | 0.262 | |
Mood | Depressive mood | 0.922 | 0.277 | 11.092 | 2.515 | 1.462–4.329 | 0.001 |
Sleep hygiene | Eating breakfast every morning | 0.622 | 0.336 | 3.429 | 1.862 | 0.964–3.595 | 0.064 |
Not drinking alcohol to induce sleep | 0.652 | 0.356 | 3.359 | 1.920 | 0.956–3.857 | 0.067 | |
Not thinking about troubles in bed | 0.692 | 0.254 | 7.403 | 1.997 | 1.213–3.286 | 0.007 | |
Preventing an irregular getting up time (within 2 h) | 0.653 | 0.258 | 6.394 | 1.921 | 1.158–3.185 | 0.011 |