Abstract
A cross-sectional study was designed to determine the prevalence of betel chewing and the high-risk groups among the students of the first and second grades in five types of senior high schools in southern Taiwan. The results reveal that more male than female students were betel chewers: the prevalence rate of current chewers is from 0.96% to 16.15% among male students compared with that of 0% to 5.58% among female students. The students in the vocational schools was found have the higher prevalence rate of betel chewing. The students in the agricultural schools are the highest-risk group for betel chewing. The highest odds were found in the agricultural school students when they were compared with the general school students. It is 31.74 for the current chewers and 5.93 for the ex-chewers.
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