| Scores of stress, fatigue and sleep quality | |
| Levels of stress, VAS (mm, means ± SD) | 68.8 ± 21.8 |
| Levels of fatigue, VAS (mm, means ± SD) | 71.5 ± 19.8 |
| Levels of fatigue on a night shift work, VAS (mm, means ± SD) | 77.9 ± 19.3 |
| Levels of Health, VAS (mm, means ± SD) | 52.8 ± 21.5 |
| Usual Times on sleep at night (minutes, means ± SD) | 361.6 ± 65.0 |
| Times it takes to get to sleep (minutes, means ± SD) | 28.3 ± 27.9 |
| Times on sleep before or after a night shift, (minutes, means ± SD) | 534.5 ± 120.7 |
| Sleep satisfaction, VAS (mm, means ± SD) | 47.3 ± 23.5 |
| Actively manage stress, no. (%) | 282 (70.3) |
| Spending times with family/friends | 76 (27.8) |
| Engage in physical activity/exercised | 53 (19.8) |
| Eat out | 51 (18.7) |
| Sleep/take a nap | 39 (14.3) |
| Go shopping | 36 (13.2) |
| Drink alcohol | 22 (8.1) |
| Go on a trip | 20 (7.3) |
| Sing karaoke | 17 (6.2) |
| Listening to the music/playing the instrument | 14 (5.1) |
| Not actively manage stress, no. (%) | 119 (29.7) |
| How to spend their day off | |
| Go out on their day off, no. (%) | 213 (53.8) |
| Stay at home on their day off, no. (%) | 183 (46.2) |
| Shopping | 166 (43.3) |
| Watching TV or a movie | 74 (19.3) |
| Doing housework/cleaning | 58 (15.1) |
| Spending time with friends/family | 51 (13.3) |
| Relaxing or reading | 44 (11.5) |
| Sleeping | 40 (10.4) |
| Going out to eat | 39 (9.6) |
| Participating in physical activity or exercising | 35 (9.1) |
| Go on a trip | 11 (2.9) |
| PSQI component scores (0 - 3) (means ± SD) | |
| 1) Subjective sleep quality | 1.4 ± 0.6 |
| 2) Sleep latency | 1.1 ± 0.9 |
| 3) Sleep duration | 1.6 ± 0.7 |
| 4) Habitual sleep efficiency | 0.3 ± 0.6 |
| 5) Sleep disturbances | 0.9 ± 0.5 |
| 6) Use of sleeping medication | 0.0 ± 0.0 |
| 7) Daytime dysfunction | 0.9 ± 0.8 |
| PSQI score (means ± SD) | 6.2 ± 2.4 |
| ≤5.5 associated with good sleep quality, no. (%) | 142 (38.7) |
| >5.5 associated with bad sleep quality | 225 (61.3) |