title: Coffee consumption and the risk of oral, pharyngeal, and esophageal cancers in Japan: the Miyagi Cohort Study.
abstract: An inverse association between coffee consumption and the risk of oral, pharyngeal, and esophageal cancers has been suggested in case-control studies, but few results from prospective studies are available. Data from the Miyagi Cohort Study in Japan were used to clarify the association between coffee consumption and the risk of these cancers. Information about coffee consumption was obtained from self-administered food frequency questionnaires in 1990. Among 38,679 subjects aged 40-64 years with no previous history of cancer, 157 cases of oral, pharyngeal, and esophageal cancers were identified during 13.6 years of follow-up. Hazard ratios were estimated by the Cox proportional hazards regression model. The risk of oral, pharyngeal, and esophageal cancers was inversely associated with coffee consumption. The multivariate-adjusted hazard ratio of these cancers for > or =1 cups of coffee per day compared with no consumption was 0.51 (95% confidence interval: 0.33, 0.77). This inverse association was consistent regardless of sex and cancer site and was observed both for subjects who did not drink or smoke and for those who currently drank or smoked at baseline. In conclusion, coffee consumption was associated with a lower risk of oral, pharyngeal, and esophageal cancers, even in the group at high risk of these cancers.
authors.affiliation: Division of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University School of Medicine, 2-1 Seiryo-machi Aoba-ku Sendai, 980-8575, Japan. a4mb1075-thk@umin.ac.jp
authors.forename: Toru
authors.initials: T
authors.lastname: Naganuma
authors.forename: Shinichi
authors.initials: S
authors.lastname: Kuriyama
authors.forename: Masako
authors.initials: M
authors.lastname: Kakizaki
authors.forename: Toshimasa
authors.initials: T
authors.lastname: Sone
authors.forename: Naoki
authors.initials: N
authors.lastname: Nakaya
authors.forename: Kaori
authors.initials: K
authors.lastname: Ohmori-Matsuda
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Nishino
authors.forename: Akira
authors.initials: A
authors.lastname: Fukao
authors.forename: Ichiro
authors.initials: I
authors.lastname: Tsuji
mesh_terms: D000328:Adult; D003069:Coffee / Q000009:adverse effects*; D016001:Confidence Intervals; D004938:Esophageal Neoplasms / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000453:epidemiology* / Q000209:etiology; D010610:Pharyngeal Neoplasms / Q000453:epidemiology* / Q000209:etiology; D016016:Proportional Hazards Models; D011446:Prospective Studies; D012307:Risk Factors; D011795:Surveys and Questionnaires
chemical_list: D003069:Coffee