Date: June 6, 2006
Contacts: Christine Stencel, Media Relations Officer
Chris Dobbins, Media Relations Assistant
Office of News and Public Information
202-334-2138; e-mail <email@example.com>
FOR IMMEDIATE RELEASE
ASBESTOS EXPOSURE LINKED TO CANCER OF THE LARYNX;
EVIDENCE ABOUT LINKS TO CANCERS OF THE DIGESTIVE TRACT IS LESS CLEAR
Cancer of the larynx -- the structure containing the vocal cords -- is relatively rare. The American Cancer Society estimates that about 9,500 new cases of laryngeal cancer will occur this year and that about 3,740 people will die from it. Smoking and heavy consumption of alcohol are the principal risk factors for this type of cancer. The cumulative results of more than 50 epidemiological studies provided compelling evidence that asbestos exposure is associated with an increased incidence of laryngeal cancer and that the risk increases with the intensity and duration of exposure, the committee found. Smoking alone or in combination with drinking may contribute to the accumulation of asbestos fibers in the lining of the larynx.
Some studies suggest that asbestos exposure is linked to a slightly increased risk of stomach, pharyngeal, and colorectal cancer, but in each case the cumulative results of the relevant studies were not strong enough to determine that there is a causal relationship. The committee found the evidence suggestive, but still too uncertain. In the case of esophageal cancer, there is not enough evidence to draw conclusions.
The study was sponsored by the National Institutes of Health at the request of Sen. Arlen Specter, R-Pa. Established in 1970 under the charter of the National Academy of Sciences, the
Pre-publication copies of ASBESTOS: SELECTED CANCERS are available from the National Academies Press; tel. 202-334-3313 or 1-800-624-6242 or on the Internet at HTTP://WWW.NAP.EDU. Reporters may obtain a copy from the Office of News and Public Information (contacts listed above).
[ THIS NEWS RELEASE AND REPORT ARE AVAILABLE AT HTTP://NATIONAL-ACADEMIES.ORG ]
Board on Population Health and Public Health Practice
COMMITTEE ON ASBESTOS: SELECTED HEALTH EFFECTS
JONATHAN M. SAMET, M.D. (CHAIR)
Professor and Chairman
Department of Epidemiology
Bloomberg School of Public Health
Johns Hopkins University
LONNIE R. BRISTOW, M.D.
American Medical Association
HARVEY CHECKOWAY, PH.D., M.P.H.
Department of Environmental and Occupational Health Sciences
School of Public Health and Community Medicine
University of Washington
PAUL DEMERS, PH.D.
Department of Health Care and
ELLEN A. EISEN, SC.D.
GEORGE D. GUTHRIE JR., PH.D.
Geology and Chemistry Group
Los Alamos National Laboratory
ROGENE F. HENDERSON, PH.D.
Lovelace Respiratory Research Institute
JOSEPH W. HOGAN, SC.D.
Associate Professor and Graduate Program Chair
Department of Community Health and Center for Statistical
AGNES B. KANE, M.D., PH.D.
Department of Pathology and
ROBERTA B. NESS, M.D., M.P.H.
Professor and Chair
Department of Epidemiology
Graduate School of Public Health
University of Pittsburgh
MICHAEL J. THUN, M.D.
Epidemiology and Surveillance Research
American Cancer Society