Table 4 Sleep and work conditions of study participants during the 2021 Tet outbreak by deterioration to high depression levels
Variables | Total | Deterioration to high depression levels | p-value* | |
|---|---|---|---|---|
No | Yes | |||
n (%) | n (%) | n (%) | ||
Total | 979 (100) | 908 (92.7) | 71 (7.3) | Â |
Sleep condition | ||||
 Hours of sleep per day | ||||
  7 + hours | 474 (48.4) | 465 (51.2) | 9 (12.7) | < 0.001 |
  Less than 7 h | 505 (51.6) | 443 (48.8) | 62 (87.3) | |
 Quality of sleep | ||||
  Good | 569 (58.1) | 559 (61.6) | 10 (14.1) | < 0.001 |
  Normal | 291 (29.7) | 257 (28.3) | 34 (47.9) | |
  Not good | 119 (12.2) | 92 (10.1) | 27 (38.0) | |
Work condition | ||||
 Working hours | ||||
  < 8 h | 240 (24.5) | 234 (25.8) | 6 (8.5) | < 0.001 |
  8–9 h | 335 (34.2) | 321 (35.4) | 14 (19.7) | |
  9 + hours | 404 (41.3) | 353 (38.9) | 51 (71.8) | |
 Work overtime in workdays | ||||
  No | 121 (12.4) | 117 (12.9) | 4 (5.6) | 0.090 |
  Yes | 858 (87.6) | 791 (87.1) | 67 (94.4) | |
 Work on weekends | ||||
  No | 110 (11.2) | 109 (12.0) | 1 (1.4) | 0.003 |
  Yes | 869 (88.8) | 799 (88.0) | 70 (98.6) | |
 Work overtime in workdays and work on weekends | ||||
  No | 147 (15.0) | 143 (15.7) | 4 (5.6) | 0.023 |
  Yes | 832 (85.0) | 765 (84.3) | 67 (94.4) | |
 Working in two places +  | ||||
  No | 837 (85.5) | 784 (86.3) | 53 (74.6) | 0.007 |
  Yes | 142 (14.5) | 124 (13.7) | 18 (25.4) | |
 Job intensity | ||||
  Not intense | 270 (27.6) | 267 (29.4) | 3 (4.2) | < 0.001 |
  Normal | 523 (53.4) | 499 (55.0) | 24 (33.8) | |
  Intense | 186 (19.0) | 142 (15.6) | 44 (62.0) | |
 Job security | ||||
  Secure | 363 (37.1) | 347 (38.2) | 16 (22.5) | < 0.001 |
  Normal | 440 (44.9) | 409 (45.0) | 31 (43.7) | |
  Insecure | 176 (18.0) | 152 (16.7) | 24 (33.8) | |
 Working environment satisfaction | ||||
  Satisfied | 386 (39.4) | 376 (41.4) | 10 (14.1) | < 0.001 |
  Normal | 513 (52.4) | 468 (51.5) | 45 (63.4) | |
  Dissatisfied | 80 (8.2) | 64 (7.0) | 16 (22.5) | |
 Relationship with co-workers | ||||
  Good | 238 (24.3) | 225 (24.8) | 13 (18.3) | < 0.001 |
  Normal | 525 (53.6) | 499 (55.0) | 26 (36.6) | |
  Not good | 216 (22.1) | 184 (20.3) | 32 (45.1) | |
 Appreciation/reward system satisfaction | ||||
  Satisfied | 246 (25.1) | 241 (26.5) | 5 (7.0) | < 0.001 |
  Normal | 476 (48.6) | 442 (48.7) | 34 (47.9) | |
  Dissatisfied | 257 (26.3) | 225 (24.8) | 32 (45.1) | |
 Change in feeling overloaded before and during the COVID-19 outbreak | ||||
  Less overload | 46 (4.7) | 46 (5.1) | 0 (0) | < 0.001 |
  No change | 522 (53.3) | 500 (55.1) | 22 (31.0) | |
  More overload | 411 (42.0) | 362 (39.9) | 49 (69.0) | |