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采用大样本的流行病学现况调查方法对肝癌高低发区男性人群饮茶习惯与肝癌死亡率的关系进行了探讨，结果显示，不同地区男性人群的饮茶率及每周饮茶量与原发性肝癌的死亡率显著负相关，相关系数分别为－０．９２和－０．９１．即饮茶率及饮茶量较高的地区，肝癌死亡率相对较低。饮茶人群中肝癌的累积死亡率为１２０．０５／１０万，显著的低于非饮茶人群（２４５．５３／１０万），在对吸烟、饮酒因素分层后仍可得到同样结果。说明饮茶可能具有一定的防癌作用。
A large sample of epidemiological investigation methods was used to investigate the relationship between tea drinking habits and mortality in males in high and low incidence areas of liver cancer. The results showed that tea drinking rates and tea drinking per week in the male population in different regions were different. Liver cancer mortality was significantly negatively correlated with correlation coefficients of -0.92 and -0.91, respectively. In areas with high tea consumption and high tea consumption, the mortality rate of liver cancer is relatively low. The cumulative mortality rate of liver cancer among the tea-drinking population was 120.05 per 100,000, which was significantly lower than that of the non-drinking tea population (245.53 per 100,000). The same results can still be obtained after the stratification of smoking and drinking factors. That tea may have a certain degree of anti-cancer effect.