Table 1.
Characteristics of participants.
| Adequate response a | Inadequate response b | No response c | |
|---|---|---|---|
| Number of participants | 1627 | 830 | 298 |
| Age, mean (SD) | 43.1 (13.0) | 44.0 (12.3) | 42.8 (12.2) |
| Sex, male | 942 (57.9%) | 523 (63.0%) | 199 (66.8%) |
| Education level | |||
| Junior high or high school | 400 (24.6%) | 179 (21.6%) | 86 (28.9%) |
| Vocational school, junior college, or technical college | 416 (25.6%) | 190 (22.9%) | 61 (20.5%) |
| University or graduate school | 811 (49.8%) | 461 (55.5%) | 151 (50.7%) |
| Annual household income (JPY) | |||
| <4.00 million | 410 (25.2%) | 183 (22.0%) | 86 (28.9%) |
| 4.00-5.99 million | 415 (25.5%) | 227 (27.3%) | 84 (28.2%) |
| 6.00-7.99 million | 360 (22.1%) | 193 (23.3%) | 49 (16.4%) |
| 8.00-9.99 million | 227 (14.0%) | 106 (12.8%) | 44 (14.8%) |
| 10.00-11.99 million | 88 (5.4%) | 50 (6.0%) | 15 (5.0%) |
| ≧12.00 million | 127 (7.8%) | 71 (8.6%) | 20 (6.7%) |
| Marital status | |||
| Married | 855 (52.6%) | 450 (54.2%) | 151 (50.7%) |
| Never married | 554 (34.1%) | 252 (30.4%) | 102 (34.2%) |
| Divorced or widowed | 218 (13.4%) | 128 (15.4%) | 45 (15.1%) |
| Employment status | |||
| Full-time employment | 1200 (73.8%) | 633 (76.3%) | 229 (76.8%) |
| Part-time employee | 292 (17.9%) | 130 (15.7%) | 47 (15.8%) |
| Temporary employee | 35 (2.2%) | 18 (2.2%) | 3 (1.0%) |
| Contract employee | 100 (6.1%) | 49 (5.9%) | 19 (6.4%) |
| Number of employees | |||
| 5-9 | 149 (9.2%) | 60 (7.2%) | 33 (11.1%) |
| 10-49 | 512 (31.5%) | 252 (30.4%) | 97 (32.6%) |
| 50-99 | 207 (12.7%) | 131 (15.8%) | 38 (12.8%) |
| 100-999 | 517 (31.8%) | 259 (31.2%) | 88 (29.5%) |
| 1000+ | 242 (14.9%) | 128 (15.4%) | 42 (14.1%) |
| Industry | |||
| Agriculture and forestry | 9 (0.6%) | 3 (0.4%) | 2 (0.7%) |
| Fisheries | 0 (0.0%) | 1 (0.1%) | 0 (0.0%) |
| Mining and quarrying of stone | 1 (0.1%) | 4 (0.5%) | 1 (0.3%) |
| Construction | 73 (4.5%) | 36 (4.3%) | 11 (3.7%) |
| Manufacturing | 293 (18.0%) | 140 (16.9%) | 66 (22.1%) |
| Electricity, gas, heat supply, and water | 19 (1.2%) | 11 (1.3%) | 7 (2.3%) |
| Information and communications | 48 (3.0%) | 25 (3.0%) | 7 (2.3%) |
| Transportation and postal services | 102 (6.3%) | 53 (6.4%) | 20 (6.7%) |
| Wholesale and retail trade | 101 (6.2%) | 72 (8.7%) | 29 (9.7%) |
| Finance and insurance | 48 (3.0%) | 23 (2.8%) | 19 (6.4%) |
| Real estate and goods retail and leasing | 19 (1.2%) | 12 (1.4%) | 5 (1.7%) |
| Scientific research, professional and technical services | 22 (1.4%) | 20 (2.4%) | 8 (2.7%) |
| Accommodations, eating and drinking services | 42 (2.6%) | 19 (2.3%) | 3 (0.1%) |
| Living-related and personal services and amusement services | 25 (1.5%) | 15 (1.8%) | 8 (2.7%) |
| Education, and learning support | 93 (5.7%) | 44 (5.3%) | 7 (2.3%) |
| Medical, health care and welfare | 488 (30.0%) | 217 (26.1%) | 49 (16.4%) |
| Compound services | 13 (0.8%) | 8 (1.8%) | 2 (0.7%) |
| Services, not elsewhere classified | 119 (7.3%) | 63 (7.6%) | 31 (10.4%) |
| Government, except elsewhere classified | 93 (5.7%) | 44 (5.3%) | 17 (5.7%) |
| Others | 19 (1.2%) | 20 (2.4%) | 6 (2.0%) |
| Occupational accidents from the baseline to the follow-up survey | |||
| Not at all | 1325 (81.4%) | 619 (74.6%) | 211 (70.8%) |
| Once | 200 (12.3%) | 134 (16.1%) | 51 (17.1%) |
| Twice | 50 (3.1%) | 43 (5.2%) | 15 (5.0%) |
| Three times | 12 (0.7%) | 12 (1.4%) | 4 (1.3%) |
| Four or more times | 40 (2.5%) | 22 (2.7%) | 17 (5.7%) |
Abbreviation: JPY, Japanese yen.
a
Company responded adequately by investigating the cause and improving facilities.
b
Company responded, but not sufficiently.
c
Company did not respond at all.