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目的通过对城区中老年人群调查和骨密度(bone mineral density,BMD)检测,了解饮绿茶与骨密度及骨量异常关联性。方法对2013年7月至2015年6月到东柳街道社区卫生服务中心体检的40~89岁居民进行调查并检测BMD。结果本研究共调查检测399例对象,其中男性67例(16.79%),女性332例(83.21%),饮绿茶48例(12.03%),不饮绿茶351例(87.97%)。骨量异常比例饮绿茶组低于不饮绿茶组。简单线性回归分析中饮绿茶与女性股骨颈及腰椎BMD均存在关联,并且有剂量效应关系。多元线性回归分析中饮绿茶在女性中与腰椎BMD存在剂量效应关系(β=0.127,P=0.022)。在绝经女性中饮绿茶与股骨颈BMD(β=0.111,P=0.023)及腰椎BMD(β=0.127,P=0.019)均存在剂量效应关系。单因素logistic回归分析中,饮绿茶对象发生骨量异常的风险更低,OR=0.42(95%CI:0.20~0.87),关联主要存在女性中,OR=0.34(95%CI:0.12~0.92),并且女性中存在剂量效应关系。多因素logistic回归分析中,未发现饮绿茶与骨量异常存在关联。结论饮较多绿茶与女性腰椎BMD呈正相关,与绝经女性股骨颈BMD也呈正相关。
Objective To investigate the relationship between drinking green tea and bone mineral density and bone mass through the investigation of middle-aged and elderly people in urban area and the detection of bone mineral density (BMD). Methods A total of 40 ~ 89-year-old residents who were physically examined at Dongliu Community Health Service Center from July 2013 to June 2015 were surveyed and their BMD was measured. Results A total of 399 subjects were examined, including 67 males (332 cases), 332 females (83.21%), 48 green tea drinks (12.03%) and 351 green tea drinks (87.97%). The proportion of abnormal bone mass drinking green tea group than drinking green tea group. Simple linear regression analysis of drinking green tea and female femoral neck and lumbar spine BMD are related, and there is a dose-response relationship. In multivariate linear regression analysis, there was a dose-response relationship between drinking green tea and lumbar BMD in women (β = 0.127, P = 0.022). There was a dose-response relationship between drinking green tea and femoral neck BMD (β = 0.111, P = 0.023) and lumbar BMD (β = 0.127, P = 0.019) in postmenopausal women. OR = 0.42 (95% CI: 0.20-0.87), OR = 0.34 (95% CI: 0.12-0.92) in association with the main presence of women, in univariate logistic regression analysis. , And there is a dose-effect relationship in women. In multivariate logistic regression analysis, there was no association between drinking green tea and abnormal bone mass. Conclusion Drinking more green tea is positively correlated with BMD of lumbar spine in women and positively correlated with BMD of femoral neck in menopausal women.