National Changhua University of Education Institutional Repository : Item 987654321/14856
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题名: Distinctive Features of Oral Cancer in Changhua County: High Incidence, Buccal Mucosa Preponderance, and a Close Relation to Betel Quid Chewing Habit
作者: Su, Che-Chun;Yang, Hsiu-Fei;Huang, Shu-Ju;Lian, Ie-Bin
贡献者: 數學系
关键词: Betel quid;Incidence rate;Oral cancer
日期: 2007
上传时间: 2012-12-10T02:29:23Z
出版者: Elsevier
摘要: Background/purpose
Oral cancer is one of the fastest increasing malignancies in Taiwan. Among the counties on the island, Changhua has been ranked in the top three in the list of oral cancer incidence. This study was performed to better characterize the epidemiology of oral cancer in Changhua county.

Methods
We used the complete registered records of oral cancer from the Department of Health data bank, and studied the trends in incidence rate, age of distribution, and anatomic sites of oral cancer in Taiwan. In addition, we correlated the incidence rate with known risk factors (betel quid chewing, smoking, and alcohol drinking) by regression analysis.

Results
Among neoplasms, oral cancer is one of the fastest increasing malignancies in Taiwan. In the past two decades from 1982 to 2001, Taiwan had an alarming 5.3-fold increase in the incidence of male oral cancer. Among the 23 counties, Changhua has ranked top in oral cancer incidence in recent years. The incidence of male oral cancer in Changhua is also among the highest in the world (45.07/105/year in 2001). The most common site was the buccal mucosa, while it was the tongue in other counties. Finally, Changhua was the only outlier in our regression model, indicating that possible interference factors may interact with oral cancer incidence and prevalence of betel quid chewing in Changhua.

Conclusion
We conclude that the high incidence and buccal mucosa preponderance of oral cancer in Changhua may have an exceptionally close relation with patients' betel quid chewing habit, and other unknown etiologic factors may also be present locally. [J Formos Med Assoc 2007;106(3):225-233]
關聯: Journal of the Formosan Medial Association, 106(3): 225-233
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