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Document ID (ISN)101080
CIS number 03-200
ISSN - Serial title 1076-2752 - Journal of Occupational and Environmental Medicine
Year 2001
Convention or series no.
Author(s) Wong O., Harris F., Rosamilia K., Raabe G.K.
Title Updated mortality study of workers at a petroleum refinery in Torrance, California, from 1959 to 1997
Bibliographic information Dec. 2001, Vol.43, No.12, p.1089-1102. 15 ref.
Abstract This cohort study involved 3328 workers employed at a refinery for at least one year between 1959 and 1997, with an observation period from 1960 to 1997. Mortality data were analysed in terms of cause-specific standardized mortality ratios with expected deaths based on US national data. The overall mortality of the cohort was significantly lower than expected. Overall cancer mortality was also lower than expected, with significant mortality deficits being observed for certain specific sites. For other diseases, no significant increases were observed, with specific mortality deficits for ischaemic heart disease, chronic endocardial disease and other myocardial insufficiencies, all other heart disease, and influenza and pneumonia. Detailed analysis by length of employment did not reveal any significant mortality excess or upward trend. Analyses of male employees by job classification (process and maintenance) showed significantly elevated mortality from cirrhosis of the liver and suicide among maintenance workers.
Descriptors (primary) mortality; statistical evaluation; petroleum refining
Descriptors (secondary) influenza; USA; pneumonia; maintenance; suicide; frequency rates; heart diseases; cancer; cohort study; long-term study; cirrhosis
Document type D - Periodical articles
Country / State or ProvinceHong Kong; USA
Subject(s) Chemicals, plastics and rubber
Broad subject area(s) Industries and occupations
Occupational medicine, epidemiology
Browse category(ies) Influenza
Viral diseases (other than aids)
Petrochemical industry
Statistical methods
Petroleum and natural gas industry
Bacterial and parasitic diseases