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Document ID (ISN)109355
CIS number 09-307
ISSN - Serial title 1351-0711 - Occupational and Environmental Medicine
Year 2007
Convention or series no.
Author(s) Sircar K., Hnizdo E., Petsonk E., Attfield M.
Title Decline in lung function and mortality: Implications for medical monitoring
Bibliographic information July 2007, Vol.64, No.7, p.461-466. Illus. 41 ref.
Abstract Mortality rates of a cohort of 1730 coal miners who had performed two pulmonary function tests 12.8 years apart were followed up for an additional 12 years. Based on previous studies, cut-off points for FEV1 rate of decline (ml/year) were selected as 30, 60 and 90 ml/year. Cox proportional regression was used to estimate multivariate risk ratio of death in each category. Compared to subjects with declines "below 30 mL/year", risk ratios were 1.39 in the "60 to less than 90 mL/year" category and 1.90 in the "90 mL/year and above" category. Rates of decline above 90 mL/year were consistently related to excess mortality.
Descriptors (primary) USA; mortality; coal mining; risk factors; pulmonary function
Descriptors (secondary) one-second forced expiratory volume; cohort study; medical supervision; statistical evaluation; long-term study
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Occupational pathology
Broad subject area(s) Occupational medicine, epidemiology
Browse category(ies) Mining and quarrying