成年女性饮茶习惯与骨质疏松患病率的研究

Study on the Relationship between Habitual Tea Drinking and Prevalence of Osteoporosis in Adult Women

目的探讨健康成年女性饮茶习惯对骨质疏松患病率的影响。方法整理1996年11月-2001年3月期间长沙马王堆等社区2185名28～91岁健康汉族成年妇女骨密度资料，进行回顾性问卷调查。运用单因素方差分析对各饮茶习惯组骨密度均数进行比较，运用卡方检验比较各组骨质疏松患病率的差异。结果饮茶组女性多部位骨密度较总体人群及不饮茶组均降低（P〈0．05），且大量饮茶组较中量组骨密度降低；饮茶组成年女性骨质疏松患病率与总体人群及不饮茶组差异均有统计学意义；饮茶组骨质疏松发病率较总体人群、不饮茶组均升高[（OR值分别为1．43（95％CI：0．62--2．24）、2．36（95％CI：1．64～3．09）]；且随饮茶量增高骨质疏松均有增高的趋势。结论女性饮茶者骨密度较不饮茶者显著降低，且随饮茶量的增加骨密度下降有一定线性趋势；且通过饮茶习惯对骨质疏松患病率的分析看，女性饮茶者较不饮茶者显著升高，且随饮茶量的增加患病率升高。

Objective To study the relationships between habitual tea drinking and bone mineral density(BMD),the prevalence of osteoporosis(OP).Methods The relationships between habitual tea drinking and BMD,the prevalence of OP were examined in a cohort of 2,185 Chinese Han women aged 28-91 years at baseline between November 1996 and March 2001.Their BMD data were analyzed and a retrospective study was conducted.Means of BMD were compared among groups with various tea drinking habits by One-Way ANOVA,and the prevalence of OP was compared by χ2 test.Results Habitual tea drinkers had lower BMD than non-tea drinkers(P<0.05).Moreover,the BMD of group with large amount of tea consumption was significantly lower than that of group with middle amount of tea consumption.The prevalence of OP of habitual tea drinkers was significantly higher than that of the total population and that of non-tea drinkers(P<0.01).The corresponding odds ratios(ORs) were 1.43(95%CI: 0.62-2.24) and 2.36(95%CI:1.64-3.09).The prevalence of OP displayed a rising tendency with increase of tea consumption.Conclusions Adult women with habitual tea drinking have lower BMD and higher prevalence of OP than non-tea drinkers.Their BMD shows a decrease tendency and their prevalence of OP shows an increase tendency with increment of tea consumption.