Current stress | Sleep disturbances | Symptoms of depression (two items) | Reduced performance | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | Cases (%) | PR | 95% CI | n | Cases (%) | PR | 95% CI | n | Cases (%) | PR | 95% CI | n | Cases (%) | PR | 95% CI | ||
Computer use (CU) | |||||||||||||||||
Men | High | 440 | 43 (10) | 1.0 | 0.60–1.55 | 398 | 70 (18) | 1.8 | 1.14–2.78 | 173 | 31 (18) | 1.1 | 0.63–2.04 | 400 | 35 (9) | 2.0 | 1.01–3.98 |
Medium | 409 | 42 (10) | 1.0 | 0.66–1.63 | 373 | 65 (17) | 1.8 | 1.17–2.79 | 187 | 30 (16) | 1.1 | 0.60–1.93 | 388 | 20 (5) | 1.2 | 0.61–2.49 | |
Low | 289 | 28 (10) | 1.0 | 263 | 25 (10) | 1.0 | 136 | 17 (12) | 1.0 | 279 | 12 (4) | 1.0 | |||||
Women | High | 463 | 92 (20) | 1.1 | 0.87–1.42 | 428 | 101 (24) | 1.2 | 0.95–1.52 | 152 | 39 (26) | 1.2 | 0.85–1.77 | 468 | 64 (14) | 1.1 | 0.79–1.48 |
Medium | 617 | 117 (19) | 1.0 | 0.81–1.29 | 566 | 94 (17) | 0.8 | 0.65–1.06 | 241 | 64 (27) | 1.2 | 0.90–1.70 | 573 | 84 (15) | 1.1 | 0.82–1.48 | |
Low | 655 | 122 (19) | 1.0 | 600 | 128 (21) | 1.0 | 246 | 56 (23) | 1.0 | 586 | 75 (13) | 1.0 | |||||
Email/chat use | |||||||||||||||||
Men | High | 116 | 6 (5) | 0.4 | 0.18–0.95 | 98 | 27 (28) | 1.9 | 1.29–2.77 | 38 | 4 (11) | … | … | 100 | 6 (6) | 0.9 | 0.41–1.99 |
Medium | 215 | 20 (9) | 0.8 | 0.52–1.31 | 197 | 31 (16) | 1.1 | 0.77–1.63 | 86 | 13 (15) | 0.9 | 0.50–1.51 | 210 | 16 (8) | 1.3 | 0.73–2.25 | |
Low | 807 | 88 (11) | 1.0 | 740 | 102 (14) | 1.0 | 373 | 61 (16) | 1.0 | 757 | 45 (6) | 1.0 | |||||
Women | High | 136 | 37 (27) | 1.7 | 1.23–2.25 | 118 | 35 (30) | 1.7 | 1.23–2.24 | 26 | 8 (31) | 1.4 | 0.74–2.50 | 129 | 21 (16) | 1.3 | 0.84–1.94 |
Medium | 348 | 80 (23) | 1.4 | 1.11–1.76 | 325 | 73 (22) | 1.3 | 1.01–1.62 | 133 | 38 (29) | 1.2 | 0.89–1.68 | 329 | 51 (16) | 1.2 | 0.88–1.60 | |
Low | 1248 | 212 (17) | 1.0 | 1149 | 212 18) | 1.0 | 477 | 111 (23) | 1.0 | 1167 | 150 (13) | 1.0 | |||||
Computer gaming | |||||||||||||||||
Men | High | 136 | 13 (10) | 0.9 | 0.51–1.53 | 107 | 20 (19) | 1.2 | 0.73–1.80 | 43 | 9 (21) | 1.1 | 0.58–1.98 | 108 | 5 (5) | 0.7 | 0.28–1.67 |
Medium | 176 | 17 (10) | 0.9 | 0.55–1.50 | 156 | 25 (16) | 1.0 | 0.70–1.55 | 73 | 7 (10) | 0.6 | 0.29–1.24 | 161 | 9 (6) | 0.8 | 0.37–1.61 | |
Low | 826 | 83 (10) | 1.0 | 771 | 115 (15) | 1.0 | 380 | 62 (16) | 1.0 | 798 | 53 (7) | 1.0 | |||||
Women | High | 29 | 7 (24) | 1.3 | 0.67–2.47 | 29 | 7 (24) | 1.0 | 0.52–2.08 | 10 | 2 (20) | … | … | 26 | 2 (8) | … | … |
Medium | 76 | 15 (20) | 1.0 | 0.65–1.63 | 59 | 17 (29) | 1.4 | 0.92–2.09 | 25 | 11 (44) | 1.9 | 1.17–3.03 | 64 | 7 (11) | 0.8 | 0.39–1.61 | |
Low | 1631 | 309 (19) | 1.0 | 1509 | 299 (20) | 1.0 | 605 | 146 (24) | 1.0 | 1538 | 213 (14) | 1.0 | |||||
CU without breaks | |||||||||||||||||
Men | High | 280 | 25 (9) | 0.9 | 0.58–1.51 | 250 | 42 (17) | 1.4 | 0.92–2.09 | 100 | 16 (16) | 0.8 | 0.46–1.42 | 253 | 20 (8) | 1.9 | 0.98–3.61 |
Medium | 454 | 50 (11) | 1.2 | 0.76–1.78 | 418 | 74 (18) | 1.5 | 1.05–2.16 | 202 | 29 (14) | 0.8 | 0.50–1.30 | 438 | 30 (7) | 1.6 | 0.90–3.03 | |
Low | 404 | 38 (9) | 1.0 | 366 | 43 (12) | 1.0 | 194 | 32 (16) | 1.0 | 377 | 16 (4) | 1.0 | |||||
Women | High | 189 | 49 (26) | 1.6 | 1.24–2.18 | 190 | 55 (29) | 1.7 | 1.31–2.23 | 62 | 21 (34) | 1.8 | 1.20–2.63 | 180 | 24 (13) | 1.1 | 0.76–1.74 |
Medium | 588 | 121 (21) | 1.2 | 1.01–1.54 | 558 | 120 (22) | 1.3 | 1.06–1.63 | 208 | 62 (30) | 1.6 | 1.16–2.09 | 586 | 94 (16) | 1.3 | 1.01–1.69 | |
Low | 958 | 161 (17) | 1.0 | 846 | 147 (17) | 1.0 | 369 | 76 (21) | 1.0 | 863 | 105 (12) | 1.0 | |||||
CU causing lost sleep | |||||||||||||||||
Men | High | 174 | 27 (16) | 1.8 | 1.17–2.70 | 146 | 38 (26) | 2.0 | 1.42–2.87 | 53 | 9 (17) | 1.0 | 0.54–2.02 | 155 | 14 (9) | 2.1 | 1.15–3.98 |
Medium | 243 | 25 (10) | 1.2 | 0.77–1.86 | 230 | 39 (17) | 1.4 | 0.96–1.94 | 104 | 20 (19) | 1.3 | 0.78–2.05 | 239 | 25 (10) | 2.5 | 1.44–4.24 | |
Low | 722 | 62 (9) | 1.0 | 659 | 83 (13) | 1.0 | 340 | 49 (14) | 1.0 | 674 | 28 (4) | 1.0 | |||||
Women | High | 123 | 35 (28) | 1.7 | 1.27–2.32 | 106 | 29 (27) | 1.5 | 1.07–2.08 | 32 | 10 (31) | 1.5 | 0.85–2.50 | 108 | 19 (18) | 1.4 | 0.92–2.20 |
Medium | 214 | 55 (26) | 1.5 | 1.17–1.94 | 221 | 55 (25) | 1.4 | 1.06–1.78 | 78 | 31 (40) | 1.9 | 1.38–2.62 | 212 | 41 (19) | 1.6 | 1.14–2.13 | |
Low | 1400 | 242 (17) | 1.0 | 1270 | 239 (19) | 1.0 | 529 | 118 (22) | 1.0 | 1308 | 163 (12) | 1.0 |