| Occupation | Hip | Knee | ||
| IR (crude) | IR (adjusted for age and BMI)* | IR (crude) | IR (adjusted for age and BMI)* | |
| Asphalt workers | 757 | 835 (458 to 1212) | 288 | 306 (86 to 525) |
| Brick layers | 849 | 658 (486 to 830) | 366 | 276 (167 to 386) |
| Concrete workers | 1003 | 730 (636 to 824) | 325 | 226 (175 to 276) |
| Drivers | 799 | 657 (405 to 908) | 326 | 262 (103 to 420) |
| Electricians | 433 | 664 (509 to 818) | 84 | 132 (63 to 202) |
| Foremen | 633 | 627 (524 to 731) | 220 | 218 (157 to 279) |
| Floor layers | 636 | 829 (439 to 1219) | 302 | 407 (129 to 685) |
| Machine operators | 556 | 681 (464 to 899) | 88 | 123 (25 to 220) |
| Painters | 415 | 447 (330 to 563) | 169 | 178 (105 to 249) |
| Plumbers | 612 | 647 (515 to 779) | 254 | 275 (188 to 362) |
| Preparatory work | 777 | 650 (479 to 921) | 222 | 189 (96 to 283) |
| Rock workers | 1026 | 857 (523 to 1191) | 494 | 318 (141 to 495) |
| Sheet-metal workers | 431 | 555 (327 to 782) | 166 | 252 (92 to 413) |
| Wood workers | 710 | 753 (662 to 844) | 237 | 250 (198 to 303) |
| White-collar workers | 604 | 575 (423 to 726) | 130 | 126 (54 to 197) |
*95% CIs in parenthesis.