Table 4.
Weighted means with 95% CIs of physical work demands (ergonomic index) in different job groups
| Job group | N | Mean (95% CI) |
| Painters | 265 | 47.1 (44.0 to 50.1) |
| Bricklayers and plumbers | 716 | 43.8 (41.9 to 45.7) |
| Carpenters and woodworkers | 585 | 40.8 (39.0 to 42.5) |
| Cleaners | 1482 | 40.4 (38.9 to 41.9) |
| Food and related products industrial labourers | 687 | 39.6 (37.5 to 41.6) |
| Butchers and bakers | 194 | 39.3 (36.7 to 41.9) |
| Manufacturing labourers | 561 | 38.3 (36.1 to 40.5) |
| Hairdressers and beauticians | 83 | 37.8 (34.5 to 41.1) |
| Cashiers | 406 | 36.4 (34.1 to 38.6) |
| Food preparation assistants | 501 | 35.8 (33.9 to 37.7) |
| Mailmen | 366 | 35.0 (32.9 to 37.1) |
| Cooks and waiters | 407 | 34.9 (33.1 to 36.6) |
| Storage and transport labourers | 728 | 34.9 (33.1 to 36.6) |
| Farmers and gardeners | 399 | 34.2 (31.3 to 37.2) |
| Assemblers | 438 | 33.6 (31.2 to 35.9) |
| Construction workers | 859 | 33.0 (31.6 to 34.5) |
| Machine operators | 1724 | 32.9 (31.8 to 34.1) |
| Mechanics | 616 | 32.4 (30.8 to 34.0) |
| Smiths | 1266 | 31.7 (30.6 to 32.8) |
| Mobile plant operators and drivers | 250 | 31.0 (27.8 to 34.1) |
| Manual construction workers | 471 | 30.6 (28.9 to 32.4) |
| Travel attendants and conductors | 157 | 30.2 (27.1 to 33.4) |
| Health and personal care workers | 3435 | 30.0 (29.2 to 30.8) |
| Electricians | 797 | 29.1 (27.8 to 30.4) |
| Child care workers | 646 | 28.3 (26.9 to 29.8) |
| Teachers’ aides and pedagogical assistants | 905 | 27.3 (26.1 to 28.6) |
| Shop salespersons | 1664 | 25.8 (24.8 to 26.9) |
| Handicraft and precisions workers | 186 | 25.7 (22.2 to 29.3) |
| Building and cleaning supervisors | 608 | 25.6 (24.5 to 26.8) |
| Manual workers in healthcare | 498 | 25.5 (23.8 to 27.2) |
| Manual work without specification | 177 | 25.3 (21.4 to 29.2) |
| Truck drivers | 736 | 25.0 (23.4 to 26.5) |
| Service workers | 77 | 23.8 (19.1 to 28.5) |
| Primary school teachers and educated child care takers | 2176 | 22.6 (22.1 to 23.2) |
| Pharmaconomists and bioanalysts | 471 | 21.3 (20.1 to 22.5) |
| Fire-fighters and protective service professionals | 306 | 21.2 (19.5 to 22.9) |
| Clinic and dental assistants | 362 | 21.1 (19.2 to 22.9) |
| Freight forwarders | 1045 | 20.2 (18.8 to 21.7) |
| Nurses | 2564 | 19.6 (19.1 to 20.2) |
| Military personnel | 431 | 19.4 (17.8 to 20.9) |
| Bus, taxi and train drivers | 603 | 18.6 (16.9 to 20.3) |
| Special educators | 1173 | 18.5 (17.6 to 19.3) |
| Laboratory technician | 453 | 18.4 (17.3 to 19.4) |
| Healthcare workers without specification | 313 | 17.1 (15.6 to 18.6) |
| Teachers | 2827 | 15.6 (15.3 to 16.0) |
| Physiotherapists and occupational therapists | 671 | 15.1 (14.3 to 15.9) |
| Librarians, archivists and curators | 436 | 14.9 (13.5 to 16.4) |
| Vocational education teachers | 558 | 14.5 (13.7 to 15.3) |
| Special needs teachers | 456 | 14.2 (13.4 to 15.0) |
| Science and engineering associates | 1529 | 13.0 (12.3 to 13.8) |
| Policemen and prison guards | 415 | 12.6 (11.7 to 13.5) |
| Customer services clerks | 640 | 12.5 (11.2 to 13.7) |
| Pharmacists, dentists and veterinarians | 316 | 12.4 (11.1 to 13.7) |
| Secondary education teachers | 742 | 12.2 (11.7 to 12.8) |
| Doctors | 571 | 11.0 (10.3 to 11.7) |
| IT-technicians | 477 | 11.0 (9.9 to 12.0) |
| Office staff and secretaries | 3736 | 10.4 (9.9 to 10.8) |
| Managers | 3373 | 9.9 (9.5 to 10.4) |
| Technical draughtsmen | 278 | 9.0 (8.0 to 10.0) |
| Sales and purchasing agents | 1472 | 8.9 (8.3 to 9.4) |
| Professors and researchers at universities | 1075 | 8.5 (8.0 to 9.1) |
| Executive, medical, and legal secretaries | 1543 | 8.3 (7.9 to 8.6) |
| Journalists | 360 | 8.0 (6.9 to 9.1) |
| Accountants | 717 | 7.5 (6.7 to 8.2) |
| Social workers | 724 | 7.4 (6.9 to 8.0) |
| Accounting staff | 1294 | 7.4 (6.9 to 7.9) |
| Engineers and architects | 2131 | 7.3 (7.0 to 7.7) |
| Psychologists | 256 | 7.1 (6.1 to 8.2) |
| Scientific academics | 369 | 7.1 (6.4 to 7.8) |
| Social science academics | 482 | 7.1 (6.4 to 7.7) |
| Customs inspectors and tax officials | 427 | 6.9 (6.3 to 7.5) |
| Auditors, advisors and analysts | 2442 | 6.2 (6.0 to 6.4) |
| IT consultants | 1644 | 6.1 (5.8 to 6.4) |
| Lawyers | 887 | 5.4 (5.0 to 5.7) |