be accurate to test (X2) =24.4; a factor of 3-5. p<0.001) Smoking history Eighteen-year available Risk of small irregular cumulative opacities category exposures >1/2 was seen were fibre/mL-year calculated by (All men n=11; summing RR=2.19;Trend test annual (X2) =18.0; p<0.001) exposures Risk of bilateral pleural during the 18 thickening (grade A) year from first was seen at >200 exposure fibre/mL-year (All men n =40; RR=1.44;Trend Silica test (X2) =4.34; exposure not p=0.04) assessed Risk of bilateral pleural (also can thickening (grade B) produce was seen at >200 interstitial fibre/mL-year (All men opacities on n =23; RR=1.38;Trend chest test (X2) =2.36; radiographs) p=0.12) Author’s conclusion: 20 years from 1st exposure mortality rates were elevated. Men leaving asbestos exposure had a risk of radiographic progression similar to men continuing in exposure and men with abnormal
Smoking history available be accurate to a factor of 3-5. Eighteen-year cumulative exposures were calculated by summing annual exposures during the 18 year from first exposure Silica exposure not assessed (also can produce interstitial opacities on chest radiographs) test (X2) =24.4; p<0.001) Risk of small irregular opacities category >1/2 was seen fibre/mL-year (All men n=11; RR=2.19;Trend test (X2) =18.0; p<0.001) Risk of bilateral pleural thickening (grade A) was seen at >200 fibre/mL-year (All men n =40; RR=1.44;Trend test (X2) =4.34; p=0.04) Risk of bilateral pleural thickening (grade B) was seen at >200 fibre/mL-year (All men n =23; RR=1.38;Trend test (X2) =2.36; p=0.12) Author’s conclusion: 20 years from 1st exposure mortality rates were elevated. Men leaving asbestos exposure had a risk of radiographic progression similar to men continuing in exposure and men with abnormal
asb_reasons10.12.2015.docx