Document penk6x6eGEXjqokyqLw4RLkQX

FILE NAME Brakes BRK DATE 2002 Jan DOC BRK123 DOCUMENT DESCRIPTION Emails to Barry Castleman RE Mechanics Mesothelioma Re Mesothelioma Subject Re Mechanics Mesothelioma Date Fri 18 Jan 2002 09:18:06 +1100 From Claudz jleigh@bigpond.com To Barry Castleman ScD bcastle@bcpl.net Dear Barry The Australian paper is ] Occ Health and Safety ANZ 2001 ] Davidson P Hendrie L Berry D. Malignant Mesothelioma in 2000 Give me your Fax again and Ill fax it 453-470 Leigh Australia 1945 to It has estimated lifetime risks in selected occupational groups A very similar paper will soon be out in Am J The book chapter will also soon be out These material Ind Med omit the lifetime risk It will also be in Inhaled Particles proceedings Ann Occ Hyg 2002 The demand for statistics on brake mechanic or vehicle mechanic risk was also made when I presented this at Inhaled Particles Cambridge in Sept 2001 G Gibbs there plus Gee plus Eternit people The problem is denominators Labour statistics give numbers of vehicle mechanics Australia 1997 82964 Australia 1933 15326 You can compare incidence rates in vehicle mechanics background rate or any other group to overall meso rate or On any binomial rate eg annual or Poisson analysis incidence from meso they have highly significant increased register 1986-2000 = 12 annual inc rate = 12/82964 12/82964 = 144 per million per year cf australia overall 35 per million per year cf backgound < 1 per million per year this assumes all vehicle mechanics get brake lining exposure but also excludes other groups who may get it eg do it yourself brake changers Doug H used this argument at WTO Also used in leading case here Lifetime risk in relation to historic exposures are more difficult but can be approximated There are quite a few critical cases on here at present and scheduled Im also working on the Fairchild appeal UK I'll let you know on India next week jim From Original Message ----- From Barry Castleman SCD bcastle@bcpl.net To Leigh James jleigh@bigpond.jlceigh@obigpomnd.com Sent Thursday January 17 2002 3:23 PM 1 of 2 1/17/02 11:47 PM Re Mesothelioma Subject Re Mechanics Mesothelioma Date Sat 19 Jan 2002 08:26:12 +1100 From Claudz jleigh@bigpond.com To Barry Castleman ScD bcastle@bcpl.net one comparison is lifetime risk of brake mechanics compared to lifetime risk of all Australian men including occ env exposed and background exposed the other is annual incidence rate , based on current population compared to accepted background incidence of 1 per million per year not recognizably occupationally or non occupationally exposed above ambient air levels really should compare lifetime risk of brake mechanics with lifetime background risk approx 70 per million or .007 ie about 100 fold greater From Original Message --~-- From Barry Castleman ScD bcastle@bcpl.net To Claudz < jleigh@bigpond.jleicgh@biogponmd.com Sent Friday January 18 2002 3:56 PM Subject Re Mesothelioma > Dear Jim > > Thanks for faxing the paper I just want to ask one thing about that > Below you indicate likelihood of that mechanics have about about 144 times the > developing mesothelioma as men in the general population On > different basis however you indicate that Table 3 p 468 lifetime > mesothelioma risk of a vehicle mechanic is 0.7 and that of All > Australian Men is 0.39 which looks like less than fold the > background risk for mechanics Can you please explain this discrepancy > Barry > > Dear Barry > > The Australian paper is ] Occ Health and Safety ANZ 2001 453-470 Leigh > > J Davidson P Hendrie L Berry D. Malignant Mesothelioma in Australia 1945 to >> >> 2000 Give me your Fax again and Ill fax it >> > > It has estimated lifetime risks in selected occupational groups >> of 1/28/02 4:26 PM