Total number of outcomes | Analysis using on Cox regression models | Analysis using g-estimation | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean (SD) age at event | Cumulative number of employment years Count (%) | Category of cumulative dust-exposure in mg/m3× years Count (%) | Ever exposed to dust ≥8 mg/m3 Count (%)* | ||||||||||
1–4 | 5–14 | 15–29 | ≥30 | 0 | >0–24 | 25–99 | 100–199 | ≥200 | Yes | No | |||
All mortality | 5185 | 67 (14) | 792 (15) | 1100 (21) | 1485 (29) | 1808 (35) | 972 (19) | 1247 (24) | 1554 (30) | 838 (16) | 574 (11) | 2855 (57) | 2193 (43) |
Mortality subgroup† | 4004 | 69 (12) | 552 (14) | 790 (20) | 1181 (29) | 1481 (37) | 782 (20) | 911 (23) | 1199 (30) | 660 (16) | 452 (11) | 2189 (56) | 1747 (44) |
Mortality subgroup‡ | 2454 | 71 (13) | 363 (15) | 496 (20) | 681 (28) | 914 (37) | 494 (20) | 592 (24) | 717 (29) | 381 (16) | 270 (11) | 1320 (55) | 1086 (45) |
Respiratory diseases mortality | 302 | 75 (11) | 29 (10) | 54 (18) | 94 (31) | 125 (41) | 40 (13) | 70 (23) | 89 (29) | 57 (19) | 46 (15) | 180 (60) | 119 (40) |
All cancer | 1948 | 67 (12) | 314 (16) | 446 (23) | 523 (27) | 665 (34) | 381 (20) | 520 (27) | 590 (30) | 267 (14) | 190 (10) | 990 (55) | 813 (45) |
Cancer subgroup§ | 1709 | 67 (12) | 285 (17) | 399 (23) | 464 (27) | 561 (33) | 349 (20) | 483 (28) | 510 (30) | 220 (13) | 147 (9) | 830 (53) | 737 (47) |
*The number of outcomes refers to the g-estimation analysis. There are slightly fewer outcomes because the analyses were restricted to first-time employments up until 1973.
†Mortality of lung cancer, violent deaths, respiratory diseases censored.
‡Mortality of myocardial infarctions, lung cancer, violent deaths, respiratory diseases censored.
§Lung cancer incidence censored.