Document mp9zqBMmy4ozzXvk9pba5bQmJ
FILE NAME Brakes BRK
DATE 1989 DOC BRK108
DOCUMENT DESCRIPTION Journal Article - Mortality of Auto Mechanics
07/02/01 09:09 FAX 313 577 0706
SHIFFMAN LIBRARY
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1985
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Validity of Temiologic
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Scand J Work Environ Health 43-46
Mortality of auto mechanics
A year follow
by Eva S Hansen MD PhD
J HANSEN ES Mortality of auto mechanics a year follow Scand Work Environ Health 1989 15
43-46 This study was set up to investigate whether work in car repair workshops is associated with an increased risk of ischemic heart disease and specific malignant peoplasms For this purpose a cohort of auto n.nanics has been followed through 10 years with regard to specific mortality Comparisons
were made with another cohort of skilled male workers who were not exposed to asbestos or petrochemi-
cal substances The auto mechanics mortality was increased for ischemic heart discasc standardized mor-
tality ratio 1R 121 95 % confidence interval 95 % CI 102-145 other cardiovascular discases SMR
112 95 % 82-150 cancer SMR 115 95 % 97-136 other discases SMR 119 95 % CI 94
149
and external causes SMR 131 95 % CI 113-153 For specific cancer sites increases were seen for pan-
creatic cancer urinary cancer outside the bladder and pleural mesothelioma
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Key terms asbestos car repair carbon monoxide ischemic heart disease mesothelioma occupation pancreatic cancer petrochemical substances polycyclic aromatic hydrocarbons urinary cancer
The work environment of auto mechanics involves
potential exposure to asbestos mineral oils solvents paint pitch pitch anticorrosive substances and automo-
bile exhaust ne erre erre on related health haz
ards is sparse regarding auto mechanics Increased risks of both bladder cancer and lung cancer have been reported 1-3 In addition a few cases of malignant mesothelioma have been reported for auto mechanics especially among persons employed in brake service centers 3-5 With regard to other occupational
groups whose exposure may resemble that of auto
mechanics increased cardiovascular mortality has been reported for motor vehicle examiners 6 whereas incrcased mortality from digestive cancer has been found among automobile manufacturing workers and other metal workers 17 )
The actual study was set up to investigate further the potential health hazards associated with the complex exposure situation typical for the work environment in Danish car repair workshops Malignant neoplasms of the respiratory system the urinary system and the upper digestive organs were anticipated to be of particular interest together with cardiovascular dis-
cases
Subjects and methods
The research design was that of a historical cohort study in which he exposed part of the cohort was compared with the unexposed part in terms of cause cific mortality through a year period of follow
eee,
J
Institute
Community
Medicine
University
Institute of Community Medicine University of Odense
Odense Denmark
Reprint requests to Dr ES Hansen Institute of Community
Medicine JB JB Winslowsvej 17 5000 Odense C. Denmark
Auto mechanics constituted the exposed part of the study cohort The comparison population ie the unexposed part of the study cohort was made up of other specific groups of skilled workers
The members of the study cohort were identified
from the files of a nationwide census carried out in
Denmark on 9 November 1970. reported occupation trade industry and employment on the day of
the census was recorded for all the Danish inhabitants
older than 14 years of age These data were used to
select the persons included in the study The study comprised only skilled workers and ap-
prentices only men between 15 and 74 years of age and only persons who were occupationally active ie employed on the day of the census Everybody with the title auto mechanic or mechanic employed at a repair workshop was included as an exposed
person As unexposed persons all men with one of the
following job titles were included proportion of total comparison group in parentheses carpenter 45 % electrician 32 % instrument maker 13 7 dairyman 5 % upholsterer 3 % or glazier 2 % Table 1 shows the number of exposed and unexposed
persons in year age groups The Danish National Bureau of Statistics has linked
the records of the 1970 census with the current cen-
tral register of persons and the national register of deaths publications numbers 37 1979 and 41 1985
from the Danish National Bureau of Statistics both
in Danish This procedure has enabled the total census population to be followed for 10 years The actual study cohort formed part of the census population and was traced by the use of the existing register linkage The study persons were traced until 8 November 1980 or till death or emigration prior to this date The follow data are shown in table 2. The auto
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