No differences in hospital admissions, health problems, prevalence of allergies, history of miscarriages due to abnormality or stillbirth, or birth defects, psychological histories, tobacco or alcohol use, abnormal ECGs, blood cell counts were detected between the exposed and unexposed firefighters.
Baris et al. 2001 Retrospective cohort study [Respiratory-s; Neurological-k; Circulatory-k; Cancer-k; All Cause] 7,789 Firefighters in Philadelphia employed between 1 Jan. 1925, and 31 Dec. 1986. Females excluded. 2,220 deaths. Duration of employment, company runs, and station house design were used as a surrogate for individual exposure. Categories of runs were categorized as low, medium, high. Cause of death compared with the general US white male population; RR between high and low exposure groups. Total Cohort: All causes: SMR 0.96, 95% CI 0.92-0.99; All cancers: SMR 1.10, 95% CI 1.00-1.20; Colon cancer: SMR 1.51, 95% CI 1.18-1.93; Ischemic heart disease: SMR 1.09, 95% CI 1.02-1.16; Cerebrovascular Disease: SMR 0.83, 95% CI 0.69-0.99; Respiratory diseases: SMR 0.67, 95% CI 0.55-0.82; Genitourinary diseases: SMR 0.54, 95% CI 0.36-0.81; External causes of death: SMR 0.69, 95% CI 0.59-0.80; All accidents: SMR 0.72, 95% CI 0.59-0.86; Suicide: SMR 0.66, 95% CI 0.48-0.92; All other causes NS. Age and calendar-year adjusted with a 10-year lag period; stratified by position, duration of employment, age at risk, hire period, company type (ladder, engine or both). Duration of employment, company runs and station house design as a surrogate for individual exposure may be some exposure misclassification. Healthy worker effect and survivor effect.
≤ 9 Years Employment: All cancers: SMR 1.26, 95% CI 1.07-1.49; Colon cancer: SMR 1.78, 95% CI 1.12-2.82; Lung cancer: SMR 1.52, 95% CI 1.16-2.01; Pancreatic cancer: SMR 2.33, 95% CI 1.36-4.02; Prostate cancer: SMR 2.36, 95% CI 1.42-3.91; Genitourinary disease: SMR 0.27, 95% CI 0.10-0.71; External causes of death: SMR 0.61, 95% CI 0.49-0.77; All accidents: SMR 0.56, 95% CI 0.43-0.75; All other causes NS.
10-19 Years Employment: Circulatory diseases: SMR 1.20, 95% CI 1.10-1.31; Ischemic heart disease: SMR 1.35, 95% CI 1.21-1.49; Respiratory diseases: SMR 0.68, 95%CI 0.49-0.96; Suicide: SMR 0.37, 95% CI 0.18-0.78; All other causes NS.


The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement