The prevalence rate of PD in subjects with betel quids chewing was statistically higher than that in subjects without betel quids chewing by 14.3%.

以嚼食槟榔有无进行牙周病盛行率分析，有嚼食槟榔的个案与无嚼食槟榔个案比较，约高出14.3%。

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The prevalence rate of PD in subjects with betel quids chewing was statistically higher than that in subjects without betel quids chewing by 14.3%.

以嚼食槟榔有无进行牙周病盛行率分析，有嚼食槟榔的个案与无嚼食槟榔个案比较，约高出14.3%。

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