|  | Total (n = 17,828) | Blue-collar (n = 7292) | White-collar (n = 10,536) | p-value |
---|---|---|---|---|---|
Age | (y) | 52.5 ± 7.6 | 51.6 ± 7.8 | 53.2 ± 7.4 | < 0.001** |
Sex | |||||
 Male | n (%) | 15,837 (88.8) | 7175 (98.4) | 8662 (82.2) | < 0.001** |
 Female | n (%) | 1991 (11.2) | 117 (1.6) | 1874 (17.8) | |
Living alone | |||||
 No | n (%) | 4133 (23.2) | 5181 (71.1) | 8514 (80.8) | < 0.001** |
 Yes | n (%) | 13,695 (76.8) | 2111 (28.9) | 2022 (19.2) | |
Working pattern | |||||
 Daytime worker | n (%) | 16,711 (93.7) | 6452 (88.5) | 10,259 (97.4) | < 0.001** |
 Shift worker | n (%) | 834 (4.7) | 795 (10.9) | 39 (0.4) | |
Working time | |||||
 40-60 h | n (%) | 12,470 (69.9) | 4861 (66.7) | 7609 (72.2) | < 0.001** |
 < 40 h | n (%) | 3068 (17.2) | 783 (10.7) | 2285 (21.7) | |
 ≥ 60 h | n (%) | 2290 (12.8) | 1648 (22.6) | 642 (6.1) | |
Working days | (day/week) | 5.2 ± 0.5 | 5.5 ± 0.6 | 5.1 ± 0.3 | < 0.001** |
Physical health | |||||
 Good/average | n (%) | 15,603 (87.5) | 6371 (87.4) | 9232 (87.6) | 0.631 |
 Poor | n (%) | 2225 (12.5) | 921 (12.6) | 1304 (12.4) | |
Mental health | |||||
 Good/average | n (%) | 15,807 (88.7) | 6393 (87.7) | 9414 (89.4) | < 0.01* |
 Poor | n (%) | 2021 (11.3) | 899 (12.3) | 1122 (10.6) | |
Sleep duration | |||||
 7-8 h | n (%) | 4179 (23.4) | 795 (24.2) | 2415 (22.9) | < 0.001** |
 < 7 h | n (%) | 12,385 (69.5) | 4884 (67.0) | 7501 (71.2) | |
 ≥ 8 h | n (%) | 1264 (7.1) | 644 (8.8) | 620 (5.9) | |
Insomnia symptoms | |||||
 DIS | n (%) | 1410 (7.9) | 568 (7.8) | 842 (8.0) | 0.643 |
 DMS | n (%) | 2914 (16.3) | 1166 (16.0) | 1748 (16.6) | 0.296 |
 EMA | n (%) | 2335 (13.1) | 928 (12.7) | 1407 (13.4) | 0.230 |
Work performance | |||||
 90–100% | n (%) | 8999 (50.5) | 3198 (43.9) | 5801 (55.1) | < 0.001** |
 <  90% | n (%) | 8829 (49.5) | 4094 (56.1) | 4735 (44.9) | |
Absence | |||||
 None | n (%) | 16,163 (90.7) | 6690 (91.7) | 9473 (89.9) | < 0.001** |
 ≥ 1 day | n (%) | 1665 (9.3) | 602 (8.3) | 1063 (10.1) |