Risk of lung cancer related to ever having worked in ISCO-68 major occupational groups (compared with those that have not worked in respective group) stratified by sex
| ISCO-68 major groups | Ever worked (cases/controls) | Model 0* OR (95% CI) | Model 1† OR (95% CI) | Model 2‡ OR (95% CI) | ||||
| Male | Female | Male | Female | Male | Female | Male | Female | |
| 0/1: Professional, technical and related workers | 37/319 | 9/74 | 0.5 (0.3 to 0.7) | 0.8 (0.3 to 1.7) | 0.6 (0.4 to 0.9) | 0.8 (0.4 to 1.7) | 0.8 (0.5 to 1.1) | 0.9 (0.4 to 1.8) |
| 2: Administrative and managerial workers | 8/93 | 2/11 | 0.4 (0.2 to 0.8) | 1.4 (0.3 to 6.4) | 0.4 (0.2 to 0.7) | 1.1 (0.2 to 5.8) | 0.4 (0.2 to 1.0) | 1.5 (0.3 to 7.5) |
| 3: Clerical and related workers | 31/252 | 2/23 | 0.5 (0.3 to 0.7) | 0.6 (0.1 to 2.6) | 0.6 (0.4 to 1.0) | 0.5 (0.1 to 2.3) | 0.7 (0.5 to 1.1) | 0.6 (0.1 to 2.7) |
| 4: Sales workers | 62/282 | 3/16 | 1.1 (0.8 to 1.5) | 1.5 (0.4 to 5.6) | 1.0 (0.7 to 1.4) | 1.5 (0.4 to 5.5) | 1.0 (0.7 to 1.4) | 1.1 (0.3 to 5.1) |
| 5: Service workers | 40/147 | 1/54 | 1.1 (0.8 to 1.6) | 0.1 (0.0 to 1.0) | 1.1 (0.7 to 1.7) | 0.1 (0.0 to 0.9) | 1.2 (0.8 to 1.9) | 0.1 (0.0 to 1.2) |
| 6: Agricultural, animal husbandry and forest | 161/678 | 18/69 | 1.2 (0.9 to 1.5) | 2.3 (1.2 to 4.5) | 1.1 (0.9 to 1.4) | 2.4 (1.2 to 4.6) | 1.0 (0.8 to 1.3) | 2.6 (1.3 to 5.3) |
| 7: Craft and related trades workers | 41/196 | 11/75 | 0.9 (0.6 to 1.4) | 1.0 (0.5 to 2.0) | 0.9 (0.6 to 1.3) | 1.0 (0.5 to 2.0) | 0.9 (0.6 to 1.4) | 0.9 (0.4 to 2.0) |
| 8: Plant and machine operators | 61/229 | 0/3 | 1.4 (1.0 to 1.9) | No cases | 1.1 (0.8 to 1.6) | No cases | 0.9 (0.6 to 1.3) | No cases |
| 9: Elementary occupations | 187/723 | 2/8 | 1.4 (1.2 to 1.7) | 2.2 (0.4 to 11.4) | 1.2 (1.0 to 1.5) | 1.6 (0.2 to 8.9) | 1.2 (0.9 to 1.5) | 1.7 (0.3 to 9.5) |
| X: Military force | 14/147 | – | 0.4 (0.2 to 0.7) | – | 0.5 (0.2 to 0.8) | – | 0.5 (0.2 to 0.9) | – |
| XI: Housewives | – | 132/874 | – | 0.9 (0.5 to 1.5) | 0.9 (0.6 to 1.5) | – | 0.9 (0.5 to 1.5) | |
Each occupational group is individually compared with the respective remaining group of samples.
*Model 0 (M0) is adjusted for age categories (5-year categories) and residence (provinces).
†Model 1 (M1) is adjusted for M0 plus cigarette smoking status and intensity.
‡Model 2 (M2) is adjusted for M1 plus opium consumption.
–, no data; ISCO-68, International Standard Classification of Occupations.