Abstract: Objective The aim of this study was to understand the mortality and trends of urban residents in Yingkou city from 2015 to 2019,and to provide the most basic information and basis for the prevention and control plan of liver cancer in Yingkou city. Methods The liver cancer mortality,standardized mortality,age-specific mortality,cause of death,potential years of life loss(PYLL),average years of life loss(AYLL)and rate of life loss(PYLLR)were calculated.The simplified life table for the cause of death was calculated and compiled,and the trend of liver cancer mortality was analyzed. Results The number of urban residents who died of liver cancer in Yingkou city from 2015 to 2019 was 566.The average annual crude mortality was 25.41/100,000,and the standardized mortality was 18.24/100,000,ranking the second cause of death.The mortality of men was significantly higher than that of women,and the difference was statistically significant(χ²=125.180,P＜0.001).In 2015—2019,the mortality of liver cancer in men was higher than that in women,and there were statistical differences(P＜0.05).The mortality of liver cancer in men and women increased gradually with age.From 2015 to 2019,the number of PYLL due to liver cancer deaths in urban areas of Yingkou city and AYLL were 6,134 person years and 10.84 years,respectively.Among them,PYLL and AYLL in male were significantly higher than those in female.Removal of liver cancer could increase life expectancy,which is positive,indicating that liver cancer has a certain impact on the life expectancy of urban residents in Yingkou city. Conclusion Liver cancer poses a great threat to the health of urban residents in Yingkou city,and there is a trend of younger age.It is urgent to take scientific anti-cancer measures to reduce the mortality of liver cancer.

Key words: Liver cancer, Mortality, Life expectancy without cause of death, Potential years of life loss