Table 2 Associations between depressive symptoms and the studied variables in the previous one month
| Â | Men | Women | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | Without depressive symptoms | With depressive symptoms | Without depressive symptoms | With depressive symptoms | ||||
| Â | n = 2773 | (%) | n = 252 | (%) | n = 749 | (%) | n = 88 | (%) |
The number of days of off-duty per month | ||||||||
   None | 256 | (85.6) | 43 | (14.4) | 54 | (77.1) | 16 | (22.9) |
   1-4 days | 1088 | (90.4) | 115 | (9.6) | 253 | (90.7) | 26 | (9.3) |
   5-7 days | 915 | (92.8) | 71 | (7.2) | 201 | (90.5) | 21 | (9.5) |
   8 days or more | 514 | (95.7) | 23 | (4.3) | 241 | (90.6) | 25 | (9.4) |
The number of days of on-call per month | ||||||||
   None | 1260 | (94.2) | 78 | (5.8) | 445 | (93.5) | 31 | (6.5) |
   1-4 days | 615 | (91.9) | 54 | (8.1) | 130 | (87.2) | 19 | (12.8) |
   5-7 days | 338 | (89.2) | 41 | (10.8) | 50 | (84.7) | 9 | (15.3) |
   8 days or more | 560 | (87.6) | 79 | (12.4) | 124 | (81.0) | 29 | (19.0) |
Average sleeping hours for days not working overnight | ||||||||
   Less than 5 hours | 216 | (82.1) | 47 | (17.9) | 65 | (78.3) | 18 | (21.7) |
   5 to less than 6 hours | 892 | (91.3) | 85 | (8.7) | 256 | (88.3) | 34 | (11.7) |
   6 to less than 7 hours | 1300 | (93.5) | 90 | (6.5) | 338 | (92.3) | 28 | (7.7) |
   7 hours or more | 365 | (92.4) | 30 | (7.6) | 90 | (91.8) | 8 | (8.2) |
The number of days of overnight work per month | ||||||||
   None | 1178 | (93.4) | 83 | (6.6) | 440 | (91.7) | 40 | (8.3) |
   Once | 264 | (91.7) | 24 | (8.3) | 53 | (89.8) | 6 | (10.2) |
   2 to 3 times | 540 | (90.3) | 58 | (9.7) | 115 | (84.6) | 21 | (15.4) |
   4 to 5 times | 482 | (91.1) | 47 | (8.9) | 87 | (89.7) | 10 | (10.3) |
   6 times or more | 309 | (88.5) | 40 | (11.5) | 54 | (83.1) | 11 | (16.9) |