Associations of tobacco use and alcohol drinking with laryngeal and hypopharyngeal cancer risks among men in Karunagappally, Kerala, India -Karunagappally cohort study.

Authors :: Padmavathy Amma Jayalekshmi
Athira Nandakumar
Suminori Akiba
Paleth Gangadharan
Chihaya Koriyama
Source :: PLoS ONE, Vol 8, Iss 8, p e73716 (2013)
Publication Year :: 2013
Publisher :: Public Library of Science (PLoS), 2013.
Abstract: BACKGROUND: From among a cohort of 65,553 men aged 30-84 in Karunagappally Taluk, Kerala, India, 52 hypopharyngeal cancer cases and 85 laryngeal cancer cases were identified by the Karunagappally Cancer Registry during the period between 1990 and 2009. METHODS: We conduct Poisson regression analysis of grouped data, taking into account age and education. RESULTS: This study showed that the incidence rates of cancers of the hypopharynx and the larynx were strongly related to the number of bidis smoked a day (P

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