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目的 研究饮茶与脂肪肝患病率的关系。方法 收集330名研究对象,调查其年龄、身高、体重、生活习惯及血清指标。运用单因素方法分析脂肪肝发病特点;利用非条件Logistic回归方法,平衡各种混杂因素,分析饮茶与脂肪肝的关系。结果 高体质指数（BMI）、高血脂、高血糖、肝损伤、男性、饮酒为脂肪肝危险因素;饮茶人群与非饮茶人群脂肪肝患病的比值比（OR）为 0.799（P=0.0222）。结论 饮茶对脂肪肝的发生有保护作用,饮茶指数每增加一个单位,脂肪肝的患病率降低20.1％。
Objective To study the relationship between drinking tea and the prevalence of fatty liver. Methods 330 subjects were collected to investigate their age, height, weight, lifestyle and serum indicators. The characteristics of fatty liver were analyzed by single factor method. Non-conditional Logistic regression was used to balance various confounding factors and analyze the relationship between drinking tea and fatty liver. Results The body mass index (BMI), hyperlipidemia, hyperglycemia, liver injury, male and alcohol consumption were the risk factors for fatty liver. The odds ratio (OR) was 0.799 for fatty liver disease between drinking tea group and non-drinking tea group (P = 0.0222 ). Conclusions Drinking tea has a protective effect on the occurrence of fatty liver. For each unit of drinking tea index, the prevalence of fatty liver is reduced by 20.1%.