Table 1.
Work, health and sleep aspects according to self-perceived sleep quality, 2018.
| VARIABLE | CATEGORY | |||
|---|---|---|---|---|
| n (%) | n (%) | p-value | ||
| Work-related aspects | ||||
| Frequency of operational flight | Never, rarely, or sometimes | 430 (67.2) | 303 (51.0) | < 0.01 |
| Delays | Frequently or always | 210 (32.8) | 291 (49.0) | |
| Commute time between hotel and | < 42 minutes | 451 (70.7) | 394 (66.7) | 0.12 |
| Airport | ≥ 42 minutes | 187 (29.3) | 197 (33.3) | |
| Difficulty commuting between | Never or almost never | 434 (67.8) | 323 (54.4) | < 0.01 |
| residence and airport | Sometimes | 156 (24.4) | 183 (30.8) | |
| Frequently or always | 50 (7.8) | 88 (14.8) | ||
| Start time of day shift | 24:00-4:59h | 92 (14.7) | 128 (22.4) | < 0.01 |
| 5:00-5:59h | 294 (47.2) | 289 (50.4) | ||
| 6:00-6:59h | 158 (25.3) | 96 (16.7) | ||
| 7:00-11:00h | 80 (12.8) | 60 (10.5) | ||
| End time of afternoon shift | 16:00-21:59h | 230 (39.1) | 173 (32.2) | 0.01 |
| 22:00-23:59h | 287 (48.8) | 274 (50.9) | ||
| 24:00-6:00h | 71 (12.1) | 91 (16.9) | ||
| Start time of night shift | 14:00-21:59h | 360 (59.8) | 326 (58.6) | 0.95 |
| 22:00-23:59h | 203 (33.7) | 190 (34.2) | ||
| 24:00-1:59h | 22 (3.7) | 22 (3.9) | ||
| 2:00-4:59h | 17 (2.8) | 18 (3.3) | ||
| End time of night shift | < 5:00h | 319 (53.0) | 278 (50.1) | 0.67 |
| 5:01-8:00h | 213 (35.4) | 210 (37.8) | ||
| 8:01-12:00h | 66 (10.9) | 61 (11.0) | ||
| 12:01-16:00h | 4 (0.7) | 6 (1.1) | ||
| Years working night shifts | Does not work nights | 359 (56.1) | 317 (53.4) | 0.19 |
| 1-5 years | 101 (15.8) | 119 (20.0) | ||
| 6-10 years | 86 (13.4) | 78 (13.1) | ||
| 11-15 years | 32 (5.0) | 36 (6.1) | ||
| ≥16 years | 62 (9.7) | 44 (7.4) | ||
| Maximum number of consecutive | ≤ 6 days | 540 (84.9) | 459 (77.9) | < 0.01 |
| days worked | ≥ 7 days | 96 (15.1) | 130 (22.1) | |
| Maximum number of consecutive | 1-2 nights | 130 (21.0) | 74 (13.0) | < 0.01 |
| nights worked | 3-4 nights | 351 (56.8) | 318 (55.9) | |
| ≥ 5 nights | 137 (22.2) | 177 (31.1) | ||
| Flight hours per month | ≤ 65 hours | 317 (50.0) | 256 (43.7) | 0.02 |
| ≥ 66 hours | 317 (50.0) | 329 (56.3) | ||
| Health and sleep aspects | ||||
| Need for recovery after work | Less need | 295 (46.1) | 97 (16.4) | < 0.01 |
| Moderate need | 210 (32.8) | 218 (36.7) | ||
| Greater need | 135 (21.1) | 279 (45.2) | ||
| Weekly physical activity time | ≥ 150 minutes | 359 (56.2) | 268 (45.2) | < 0.01 |
| < 150 minutes | 280 (43.8) | 325 (54.8) | ||
| Self-perceived diurnal preference | Intermediary | 91 (14.2) | 50 (8.4) | < 0.01 |
| Morning | 266 (41.6) | 225 (37.9) | ||
| Evening | 283 (44.2) | 319 (53.7) | ||
| Sleep duration after day shift | > 8 hours | 70 (10.9) | 36 (6.1) | < 0.01 |
| 6-8 hours | 529 (82.8) | 446 (75.1) | ||
| < 6 hours | 40 (6.3) | 112 (18.8) | ||
| Sleep duration after night shift | > 8 hours | 113 (17.7) | 81 (13.7) | < 0.01 |
| 6-8 hours | 382 (59.7) | 301 (50.7) | ||
| < 6 hours | 145 (22.6) | 211 (35.6) | ||
| Sleep duration during days off | > 8 hours | 459 (71.9) | 367 (62.0) | < 0.01 |
| 6-8 hours | 176 (27.6) | 207 (34.9) | ||
| < 6 hours | 3 (0.5) | 18 (3.1) |