Characteristics of cohort studies
| Cohort | N 16 279 (m) 5769 (f) | Definition | Period of operation | Type of asbestos | How cohort was established | Exposure measurements | Start of follow-up | End of follow up | Median age of first exposure Years (IQR) |
|---|---|---|---|---|---|---|---|---|---|
| Wittenoom Workers | 6489 (m) 421 (f) | Asbestos mine and mill workers | 1937–1966 | Crocidolite | Employment records | f/ml-year time since first exposure | Start of employment | 31 December 2007 | 27.6 (22.6–35.3) |
| Wittenoom Residents | 2206 (m) 2615 (f) | Resident of Wittenoom | 1937–1992 | Crocidolite | Public records | f/ml-year time since first exposure | Start of residence | 31 December 2007 | 11.3 (2.6–27.3) |
| Eternit Workers, Casale Monferrato | 2657 (m) 777 (f) | Asbestos cement factory workers | 1907–1986 | Crocidolite and chrysotile | Employment records | Duration of employment Time since first exposure | Start of employment | 31 December 2008 | 27.6 (21.4–35.3) |
| Eternit Wives, Casale Monferrato | 1779 (f) | Wives of Eternit factory workers | 1921–1986 | Crocidolite and chrysotile | Public records | Duration Time since first exposure | Marriage or start of husband's employment | 31 December 2008 | 29.3 (24.1–36.0) |
| Amosite factory (Collotta & CIS), Molina di Ledro | 248 (m) 161 (f) | Amosite factory workers | 1919–1978 | Amosite | Recall of workers and various public records | Duration of employment Time since first exposure | Start of employment | 31 December 2007 | 24.7 (17.4–36.3) |
| Officine Meccaniche Stanga, Padua | 1847 (m) 6 (f) | Construction, repair and renovation of railway stock | 1956–1982 | Crocidolite mainly, and chrysotile | Employment records | Duration of employment Time since first exposure | 1956 or start of employment if later | 15 September 2007 | 25.5 (21.0–32.5) |
| Officina Meccanica Cittadella, province of Padua | 1125 (m) 10 (f) | Repair and renovation of railway stock | 1956–1989 | Crocidolite mainly, and chrysotile | Employment records | Duration of employment Time since first exposure | 1956 or start of employment if later | 15 September 2007 | 22.6 (17.8–30.9) |
| Main repair workshop Railway Service, Vicenza | 1706 (m) 0 | Repair and renovation of railway stock | 1956–1988 | Crocidolite mainly, and chrysotile | Employment records | Duration of employment Time since first exposure | 1956 or start of employment if later | 15 September 2007 | 25.8 (22.3–30.0) |