|  | Overall, n = 4030 |  | Researcher/academic, n = 1975 |  | Clerk/administration, n = 992 |  | Technician/engineer, n = 1063 |  | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Suicidal ideation | Yes | No | P value | Yes | No | P value | Yes | No | P value | Yes | No | P value | |
Variables | N = 236 (5.9) | N = 3794 (94.1) | N = 108 (5.5) | N = 1867 (94.5) | N = 69 (7.0) | N = 923 (93.0) | N = 59 (5.6) | N = 1004 (94.4) | |||||
Workplace Social Capital |  |  | <  0.001 |  |  | 0.002 |  |  | 0.005 |  |  | <  0.001 | |
 High | 33 (4.3) | 728 (95.7) |  | 17 (4.4) | 369 (95.6) |  | 7 (4.1) | 163 (95.9) |  | 9 (4.4) | 196 (95.6) |  | |
 Mid-high | 41 (3.4) | 1158 (96.6) |  | 23 (3.9) | 573 (96.1) |  | 12 (4.4) | 262 (95.6) |  | 6 (1.8) | 323 (98.2) |  | |
 Mid-low | 53 (5.2) | 971 (94.8) |  | 24 (4.9) | 467 (95.1) |  | 20 (7.0) | 264 (93.0) |  | 9 (3.6) | 240 (96.4) |  | |
 Low | 109 (10.4) | 937 (89.6) |  | 44 (8.8) | 458 (91.2) |  | 30 (11.4) | 234 (88.6) |  | 35 (12.5) | 245 (87.5) |  | |
Age group |  |  | <  0.001 |  |  | <  0.001 |  |  | 0.001 |  |  | 0.005 | |
 20–29 | 37 (10.9) | 302 (89.1) |  | 14 (11.5) | 108 (88.5) |  | 15 (12.4) | 106 (87.6) |  | 8 (8.3) | 88 (91.7) |  | |
 30–39 | 77 (7.8) | 905 (92.2) |  | 43 (7.2) | 551 (92.8) |  | 16 (9.0) | 162 (91.0) |  | 18 (8.6) | 192 (91.4) |  | |
 40–49 | 72 (6.3) | 1078 (93.7) |  | 28 (4.8) | 552 (95.2) |  | 23 (8.9) | 234 (91.1) |  | 21 (6.7) | 292 (93.3) |  | |
 50–65 | 50 (3.2) | 1509 (96.8) |  | 23 (3.4) | 656 (96.6) |  | 15 (3.4) | 421 (96.6) |  | 12 (2.7) | 432 (97.3) |  | |
Marital status |  |  | <  0.001 |  |  | <  0.001 |  |  | 0.127 |  |  | 0.001 | |
 Married | 132 (4.4) | 2883 (95.6) |  | 57 (3.8) | 1461 (96.2) |  | 42 (6.0) | 657 (94.0) |  | 33 (4.1) | 765 (95.9) |  | |
 Never married | 96 (10.5) | 817 (89.5) |  | 47 (11.0) | 379 (89.0) |  | 25 (9.7) | 232 (90.3) |  | 24 (10.4) | 206 (89.6) |  | |
 Divorced/widowed | 8 (7.8) | 94 (92.2) |  | 4 (12.9) | 27 (87.1) |  | 2 (5.6) | 34 (94.4) |  | 2 (5.7) | 33 (94.3) |  | |
Educational attainment | Â | Â | 0.108 | Â | Â | 0.595a | Â | Â | 0.104 | Â | Â | 0.036 | |
 Graduate school | 126 (5.1) | 2330 (94.9) |  | 98 (5.7) | 1621 (94.3) |  | 5 (3.3) | 148 (96.7) |  | 23 (3.9) | 561 (96.1) |  | |
 University | 61 (7.1) | 796 (92.9) |  | 7 (3.6) | 189 (96.4) |  | 36 (8.6) | 381 (91.4) |  | 18 (7.4) | 226 (92.6) |  | |
 College etc. | 15 (7.0) | 200 (93.0) |  | 2 (6.7) | 28 (93.3) |  | 9 (8.9) | 92 (91.1) |  | 4 (4.8) | 80 (95.2) |  | |
 High school | 34 (6.8) | 468 (93.2) |  | 1 (3.3) | 29 (96.7) |  | 19 (5.9) | 302 (94.1) |  | 14 (9.3) | 137 (90.7) |  | |
Annual household income, JPY |  |  | <  0.001 |  |  | <  0.001 |  |  | 0.203 |  |  | 0.004 | |
 12 million or more | 22 (3.5) | 613 (96.5) |  | 13 (3.5) | 359 (96.5) |  | 6 (5.4) | 105 (94.6) |  | 3 (2.0) | 149 (98.0) |  | |
 8–12 million | 67 (4.4) | 1469 (95.6) |  | 35 (4.1) | 823 (95.9) |  | 18 (5.8) | 290 (94.2) |  | 14 (3.8) | 356 (96.2) |  | |
 4–8 million | 99 (6.8) | 1347 (93.2) |  | 41 (6.8) | 560 (93.2) |  | 31 (6.9) | 418 (93.1) |  | 27 (6.8) | 369 (93.2) |  | |
 4 million or less | 48 (11.6) | 365 (88.4) |  | 19 (13.2) | 125 (86.8) |  | 14 (11.3) | 110 (88.7) |  | 15 (10.3) | 130 (89.7) |  |