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Betel Chewing (betel + chewing)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Betel quid not containing tobacco and oral cancer: A report on a case,control study in Papua New Guinea and a meta-analysis of current evidence

INTERNATIONAL JOURNAL OF CANCER, Issue 6 2007
Steven J. Thomas
Abstract Smoking and betel quid chewing are associated with increased risk of oral cancer but few studies have reported on associations in populations where betel quid does not contain tobacco. We conducted a case,control study in Papua New Guinea and a systematic review. Our case,control study recruited 143 cases with oral cancer and 477 controls. We collected information on smoking and betel quid chewing. Current smoking was associated with an increased risk of oral cancer with an adjusted odds ratio (OR) for daily smokers of 2.63 (95% confidence intervals (95% CI) 1.32, 5.22) and amongst heaviest smokers of 4.63 (95% CI 2.07, 10.36) compared to never-smokers. Betel chewing was associated with increased risk of oral cancer with an adjusted OR for current chewers of 2.03 (95% CI 1.01, 4.09) and in the heaviest chewers of 2.47 (95% CI 1.13, 5.40) compared to nonchewers. The OR in those who both smoked tobacco and chewed betel quid was 4.85 (95% 1.10, 22.25), relative to those who neither smoked nor chewed. The systematic review identified 10 previous studies that examined risk of oral cancer associated with betel quid chewing that controlled for smoking in populations where betel quid did not contain tobacco. In studies that reported results for non-smokers the combined OR was 2.14 (95% CI 1.06, 4.32) in betel quid chewers and in studies that adjusted for smoking the combined OR was 3.50 (95% CI 2.16, 5.65) in betel quid chewers. Preventive efforts should discourage betel quid chewing as well as smoking. © 2006 Wiley-Liss, Inc. [source]

Effect of betel chewing, tobacco smoking and alcohol consumption on oral submucous fibrosis: a case,control study in Sri Lanka

JOURNAL OF ORAL PATHOLOGY & MEDICINE, Issue 4 2006
A. Ariyawardana
Background:, Oral submucous fibrosis (OSMF) is a chronic, insidious, disabling potentially malignant condition of the oral mucosa seen predominantly in south and Southeast Asia. No reports are hitherto available on the aetiological factors of OSMF based on Sri Lankan patients. Methods:, A total of 74 patients with OSMF and 74 controls who consecutively attended the Oral Medicine clinic at the Dental Hospital (Teaching) Faculty of Dental Sciences, University of Peradeniya, Sri Lanka were included in the study. Binary logistic regression analyses were performed to model the influence of betel chewing, smoking and alcohol use and to determine the effects of different combinations of chewing habits on OSMF. Results:, Betel chewing was the only significantly associated factor in the aetiology of OSMF (OR = 171.83, 95% CI: 36.35,812.25). There were no interaction effects of chewing, smoking and alcohol consumption in the causation of OSMF. Conclusion:, The present study has shown a strong association of betel quid chewing (including tobacco as an ingredient) with the causation of OSMF. [source]