<15 months (SMR=38.2; 95% Cl: 7.7, 125.1), 15 months to 9.9 years (SMR=236.0; 95%CI: 107.8, 461.1) and employment duration years ≥10 (SMR=628.6; 95%CI: 301.1, 1185.1) Author’s conclusion: SRR was statistically significant asbestosis increased across categories of exposure duration (≥15 months) and over increasing categories of cumulative exposure from fibre/mL-year ≥50 asbestosis. Note levels of likely exposure were high in this mill. Berry et al Cited by: Asbestosis: a 379 textile Chrysotile first Fibre Duration of Morbidity study Asbestos (1979) Becklake study of factory workers and employed concentration exposure: reporting asbestos exposure (1991) response (100% men) crocidolite after 1950 method used: producing M=20.1 exposure producing RMA ID: relationships with >10 years’ asbestos cumulative For each job asbestosis and asbestosis seen Group first 000429 in an asbestos service textile factory exposure: description a crepitation’s 84 employed textile factory (n=197) M=84 dust level was 58 =possible after 1950 For possible and fibre/mL-year calculated for asbestosis (34 = (n=197) the certified asbestosis the each year by certified as Concentration average 1% prevalence are taking the asbestosis) of exposure: follow-up estimated at 55 average of the M=5.0 since first fibre/mL-year and 72 Diagnosis and levels fibre/mL fibre/mL-year. examination by
<15 months (SMR=38.2; 95% Cl: 7.7, 125.1), 15 months to 9.9 years (SMR=236.0; 95%CI: 107.8, 461.1) and employment duration ≥10 years (SMR=628.6; 95%CI: 301.1, 1185.1) Author’s conclusion: SRR was statistically significant asbestosis increased across categories of exposure duration (≥15 months) and over increasing categories of cumulative exposure from ≥50 fibre/mL-year asbestosis. Note levels of likely exposure were high in this mill. Berry et al (1979) Cited by: Becklake (1991) RMA ID: 000429 Asbestosis: a study of relationships in an asbestos textile factory 379 textile factory workers (100% men) with >10 years’ service 58 =possible asbestosis (34 = certified as asbestosis) Diagnosis and examination by Chrysotile and crocidolite asbestos textile factory first employed after 1950 cumulative exposure: (n=197) M=84 fibre/mL-year Concentration of exposure: M=5.0 fibre/mL Fibre concentration method used: For each job description a dust level was calculated for each year by taking the average of the levels Duration of exposure: M=20.1 Group first employed after 1950 (n=197) the average follow-up since first Morbidity study reporting asbestos exposure producing asbestosis and crepitation’s For possible and certified asbestosis the 1% prevalence are estimated at 55 fibre/mL-year and 72 fibre/mL-year. Asbestos exposure producing asbestosis seen 84 response
asb_reasons10.12.2015.docx