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Document ID (ISN)103355
CIS number 04-373
ISSN - Serial title 1351-0711 - Occupational and Environmental Medicine
Year 2004
Convention or series no.
Author(s) Finkelstein M.M., Verma D.K.
Title A cohort study of mortality among Ontario pipe trades workers
Bibliographic information Sep. 2004, Vol.61, No.9, p.736-742. 8 ref.
Abstract A cohort of 25,285 plumbing and pipe fitting workers in the United States and Canada who entered the trade after 1949 was assembled from union records. Standardized mortality ratios (SMRs) were computed using Ontario (Canada) general population mortality rates as the reference. There were significant increases in lung cancer mortality rates (SMR 1.27). Increased lung cancer risk was observed among workers joining the union as late as the 1970s. A meta-analysis of this study and two earlier studies found significant increases in oesophageal (relative risk - RR 1.24), lung (RR 1.31), and haematological and lymphatic malignancies (RR 1.21). The mortality pattern is consistent with the effects of occupational exposure to asbestos. However, increased risk due to other respiratory carcinogens such as welding fumes cannot be excluded.
Descriptors (primary) Ontario; mortality; plumbing; cancer; risk factors; pipelaying
Descriptors (secondary) carcinogens; leukaemia; Canada; USA; oesophageal carcinoma; frequency rates; lymphoma; lung cancer; welding fumes; cohort study; role of workers' organizations; asbestos
Document type D - Periodical articles
Country / State or ProvinceCanada
Subject(s) Construction industry
Broad subject area(s) Industries and occupations
Browse category(ies) Trenching and excavating