Table 1.
Participant characteristics according to company size
| Size of belonging company (Number of employees) | ||||
|
Large
(1000 or more) |
Medium
(50–999) |
Small
(1–49) |
||
| Total | 4272 | 5117 | 6440 | |
| Age | ||||
| 20–29 | 185 (4.3%) | 259 (5.1%) | 173 (2.7%) | |
| 30–39 | 611 (14.3%) | 764 (14.9%) | 769 (11.9%) | |
| 40–49 | 1222 (28.6%) | 1601 (31.3%) | 1898 (29.5%) | |
| 50–59 | 1755 (41.1%) | 1929 (35.7%) | 2511 (39.0%) | |
| 60–65 | 499 (11.7%) | 664 (13.0%) | 1089 (16.9%) | |
| Sex | ||||
| Men | 2781 (65.1%) | 3172 (62.0%) | 3785 (58.8%) | |
| Women | 1491 (34.9%) | 1945 (38.0%) | 2665 (41.2%) | |
| Annual household income (million JPY) | ||||
| <2 | 128 (3.0) | 226 (4.4%) | 660 (10.3%) | |
| ≥2 and <4 | 514 (12.0%) | 990 (19.3%) | 1594 (24.8%) | |
| ≧4 and <6 | 828 (19.4%) | 1316 (25.7%) | 1610 (25.0%) | |
| ≧6 and <8 | 997 (23.3%) | 1068 (20.9%) | 1105 (17.2%) | |
| ≧8 | 1805 (42.3%) | 1517 (29.6%) | 1471 (22.8%) | |
| Educational background | ||||
| Junior high or high school | 1018 (23.8%) | 1426 (27.9%) | 2117 (32.9%) | |
| Vocational school, junior college or technical school | 613 (14.4%) | 1003 (19.6%) | 1575 (24.5%) | |
| University or graduate school | 2641 (61.8%) | 2688 (52.5%) | 2748 (42.7%) | |
| Marital status | ||||
| Married | 1244 (29.1%) | 1704 (33.3%) | 2296 (35.7%) | |
| Widowed/divorced | 339 (7.9%) | 432 (8.4%) | 755 (11.7%) | |
| Never married | 2689 (62.9%) | 2981 (58.3%) | 3389 (58.3%) | |
| Occupation | ||||
| General employee | 2104 (49.3%) | 2773 (54.2%) | 2423 (37.6%) | |
| Manager | 691 (16.2%) | 753 (14.7%) | 382 (5.9%) | |
| Executive manager | 31 (0.7%) | 107 (2.1%) | 494 (7.7%) | |
| Public employee, faculty member, or non-profit organization employee | 806 (18.9%) | 606 (11.8%) | 354 (5.5%) | |
| Temporary/contract employee | 603 (14.1%) | 810 (15.8%) | 340 (5.3%) | |
| Independent business (commercial and industrial services) | 9 (0.2%) | 15 (0.3%) | 1548 (24.0%) | |
| Small office/home office | 3 (0.1%) | 3 (0.1%) | 270 (4.2%) | |
| Agricultural, forestry, and fishing industries | 2 (0.0%) | 3 (0.1%) | 135 (2.1%) | |
| Professional occupation (lawyer, tax accountant, etc.) | 11 (0.3%) | 14 (0.3%) | 140 (2.2%) | |
| Other occupation | 12 (0.3%) | 33 (0.6%) | 354 (5.5%) | |
| Industry | ||||
| Manufacturing | 1069 (25.0%) | 1179 (23.0%) | 755 (11.7%) | |
| Public service | 638 (14.9%) | 389 (7.6%) | 203 (3.2%) | |
| Information and technology | 312 (7.3%) | 331 (6.5%) | 287 (4.5%) | |
| Retail and wholesale | 244 (5.7%) | 355 (6.9%) | 629 (9.8%) | |
| Eating/drinking | 110 (2.6%) | 182 (3.6%) | 513 (8.0%) | |
| Education and religion | 275 (6.4%) | 417 (8.1%) | 507 (7.9%) | |
| Finance | 434 (10.2%) | 213 (4.2%) | 161 (2.5%) | |
| Construction | 96 (2.3%) | 139 (2.7%) | 428 (6.7%) | |
| Other | 1064 (25.6%) | 1912 (37.4%) | 2957 (45.9%) | |
| Vaccination arranged by company | ||||
| Yes | 2383 (55.8%) | 1780 (34.8%) | 914 (14.2%) | |
| No | 1889 (44.2%) | 3337 (65.2%) | 5526 (85.8%) | |
| Month of 2nd COVID-19 vaccination | ||||
| February-June | 161 (3.0%) | 205 (4.0%) | 197 (3.1%) | |
| July | 450 (10.5%) | 467 (9.1%) | 607 (9.4%) | |
| August | 1267 (29.7%) | 1354 (26.5%) | 1550 (24.1%) | |
| September | 941 (22.0%) | 1140 (22.3%) | 1380 (21.4%) | |
| October | 774 (18.1%) | 1063 (20.8%) | 1212 (18.8%) | |
| November | 240 (5.6%) | 319 (6.2%) | 420 (6.5%) | |
| December | 21 (0.5%) | 35 (0.7%) | 40 (0.6%) | |
| Non-vaccinated | 418 (9.8%) | 534 (10.4%) | 1034 (16.1%) | |