Table 1.

Pooled Italian asbestos cohort study: description of the cohorts participating in the study.

Region	Company or cohort name	Location	Industrial Activity	Asbestos type	Year of activity	Total of subjects	Cancer Registry coverage (year of establishment)
Piedmont	Amiantifera [1,2]	Balangero	Miners	Chrysotile	1921-1989	974 men	Registry of Piedmont (1985): it covered only the city of Turin until 2007. Since 2008 the Registry has covered the province of Turin. Remaining provinces are not yet covered, but linkage was attempted because of internal migration and changes of residence. Incidence data were updated until 2019
	Eternit [3]	Casale Monferrato	Asbestos Cement	Chrysotile, crocidolite	1907-1986	3434 (2657 men)
	Magliola	Santhià	Rolling stock maint and cons	Crocidolite, amosite	1901-1994	1563 (1415 men)
	SACA [4]	Cavagnolo	Asbestos Cement	Chrysotile, crocidolite	1947-1982	869 (586 men)
	SILA	Cigliano	Friction materials	Chrysotile	1924-active	421 (255 men)
	Wives of Eternit workers [5]	Casale Monferrato	Wives workers	Chrysotile, crocidolite	1907-1986	1779 women
Lombardy	Fibronit [6]	Broni	Asbestos Cement	Chrysotile, crocidolite, amosite	1932-1993	2012 (1841 men)	Registry of the province of Pavia: incidence data 2003 - 2018 were used
Liguria	Cantieri Navali Genoa [7]	Genoa	Shipyard	Mixed fibres	1933-active	3984 men	Registry of the province of Genova (1986): initially only the city, updated until 2016
Veneto	Compagnia Lavoratori Portuali	Venice	Harbour	Mixed fibres	1926-active	1956 (1954 men)	Registry of Region Veneto: the coverage has changed over the years. It covered the 27%, 33%, 45%, 49%, 53%, 96% and 100% of the population until 1987, 1988-1989, 1990-1997, 1998-2007, 2008-2012, 2013 and 2014-2018, respectively
	Edilit [8]	Vigodarzere	Asbestos Cement	Mixed fibres	1946-active	562 (339 men)
	Fervet	Castelfranco Veneto	Rolling stock maint and cons	Crocidolite, amosite	1919-2008	970 (968 men)
	Fincantieri	Venice	Shipyard	Mixed fibres	1940-active	4515 (4510 men)
	Officine di Cittadella [9,10]	Cittadella	Rolling stock maint and cons	Mixed fibres	1946-2008	1255 (1244 men)
	Officine Grandi Riparazioni FS	Vicenza	Rolling stock maint and cons	Mixed fibres	1919-active	1664 men
	Officine Meccaniche Stanga [9,10]	Padua	Rolling stock maint and cons	Mixed fibres	1920-2008	2055 (2048 men)
Emilia-Romagna	Artclit [11]	Cadelbosco Sopra	Asbestos Cement	Chrysotile, crocidolite	1965-1988	55 (54 men)	Registry of the province of Reggio Emilia: incidence data from Jan 1, 1996 were used
	Cemental [11]	Correggio	Asbestos Cement	Chrysotile, crocidolite	1952-1989	562 (486 men)
	Cemiant [11]	Cadelbosco Sopra	Asbestos Cement	Chrysotile	1968-1991	119 (28 men)
	Fibrotubi [11]	Bagnolo in Piano	Asbestos Cement	Chrysotile, crocidolite	1957-1993	295 (237 men)
	ICAR Eternit [11]	Rubiera	Asbestos Cement	Chrysotile, crocidolite	1961-1992	578 (510 men)
	Itamiant [11]	Castelnovo Sotto	Asbestos Cement	Chrysotile, crocidolite	1955-1993	1216 (910 men)
	Officine Gallinari	Reggio Emilia	Rolling stock cons	Mixed fibres	1957-1992	1682 (1664 men)
	Sidercam [11]	Boretto	Asbestos Cement	Chrysotile, crocidolite	1969-1993	143 (131 men)
	Uprocem [11]	Boretto	Asbestos Cement	Chrysotile, crocidolite	1973-1993	68 (52 men)
	Maranit [11]	Poggio Renatico	Asbestos Cement	Chrysotile, crocidolite	1962-1993	202 (185 men)	Registry of the province of Ferrara (established in 1987): incidence data 1991-2011 were used
	Superlit [11]	Novi di Modena	Asbestos Cement	Chrysotile, crocidolite	1954-1993	174 (168 men)	Registry of the province of Modena (established in 1989): incidence data updated till 2015
	Casaralta [12]	Bologna	Rolling stock maint and cons	Crocidolite, amosite	1919-1998	1851 (1807 men)	No Registry covered the province of Bologna: incidence data reported in hospital discharge records (HDR) were used instead. HDR data were available since 1988 (exhaustive since 2004)
	Derbit [13]	Castenaso	Asphalt rolls	Chrysotile	1964-1997	410 (338 men)
	Officina Grandi Riparazioni FS	Bologna	Rolling stock maint	Mixed fibres	1908-2018	3115 (3070 men)
Tuscany	Baraclit	Bibbiena	Asbestos Cement	Chrysotile	1943-active	1029 men	Registry of Region Tuscany (established in 1985): incidence data for residents of Florence and Prato until 2013, and incidence data for the whole Region since 2013. Incidence data updated until 2017
	Borma	Leghorn	Glassworks	Mixed fibres	1900-1992	2422 (1947 men)
	Breda [14]	Pistoia	Rolling stock cons	Mixed fibres	1918-active	3705 (3525 men)
	Cantieri Navali Apuania	Massa Carrara	Shipyard	Mixed fibres	1949-active	920 (890 men)
	Compagnia Lavoratori Portuali	Leghorn	Harbour	Mixed fibres	1957-active	2637 (2596 men)
	Fervet	Viareggio	Rolling stock maint and cons	Chrysotile	1910-1993	876 (869 men)
	Fibronit [15]	Avenza	Asbestos Cement	Chrysotile, crocidolite	1935-1985	262 (200 men)
	Officine Grandi Riparazioni FS	Florence	Rolling stock maint and cons	Crocidolite, amosite	1930-2005	1001 men
	Sacfem	Arezzo	Rolling stock cons	Crocidolite	1945-1983	692 (688 men)
	Saivo	Florence	Glassworks	Chrysotile	1915-1992	1374 (1080 men)
	Saline	Volterra	Rock salt workers	Chrysotile, amosite	1900-1992	489 (368 men)
	Santa Lucia [16]	Pistoia	Industrial ovens cons	Chrysotile, crocidolite	1962-active	249 (233 men)
	Signani	Aulla	Ship furniture	Mixed fibres	1945-1994	1338 (1314 men)
	Siri	Sesto Fiorentino	Insulation	Mixed fibres	1951-1989	220 (219 men)
	Veronit	Leghorn	Asbestos Cement	Chrysotile, crocidolite	1950-1989	159 (130 men)
Sicily	Eternit	Syracuse	Asbestos Cement	Chrysotile, crocidolite	1953-1992	867 (608 men)	Registry of the province of Syracuse (1999)
	Sacelit [17,18]	San Filippo Mela	Asbestos Cement	Chrysotile, crocidolite	1958-1993	204 (177 men)	Registry of the province of Catania (2003)
Italy	Australian Blue asbestos [19]	Wittenoom (Australia)	Italian miners in Wittenoom	Crocidolite	1943-1967	300 (299 men)	Cancer Registry coverage according to residence

Abbreviations: Cons, construction; Maint, Maintenance. References related to cohorts included in the study are reported in Supplementary Table 1.