Trend on Mortality of Gastric Cancer and Cause-eliminated Life Expectancy from 1987 to 2019 in Harbin / 肿瘤防治研究

ABSTRACT

Objective To analyze the mortality characteristics and trends and the cause-eliminated life expectancy of gastric cancer in Harbin City from 1987 to 2019. Methods Mortality data of residents with gastric cancer from 1987 to 2019 in Harbin was analyzed to describe the mortality characteristics and trends of gastric cancer. Abridged life table and cause-eliminated life table were applied to calculate life expectancy and cause-eliminated life expectancy. Average annual percentage change (AAPC) was calculated with Joinpoint 4.2 software to evaluate the trends of mortality and cause-eliminated life expectancy of gastric cancer. Results From 1987 to 2019, the crude mortality, ASMRC and ASMRW and the truncated rate (35-64) were 14.3/105, 10.9/105, 10.9/105, and 13.5/105, respectively. The ASMRC showed an obvious decreasing trend at an average annual rate of 2.9% from 1987 to 2019 (95%CI -4.4%--1.4%). Significant decreasing trends were observed for males (AAPC=-3.0%, 95%CI -4.4%--1.7%) and females (AAPC=-3.1%, 95%CI -5.3%--0.9%). An obvious decreasing trend in the ASMRW was also observed. The truncated rate (35-64) showed a downward trend (AAPC=-2.8%, 95%CI -3.1%--2.5%). The average life expectancy of residents from 1987 to 2019 in Harbin were 76.78 years (male 74.41 years, female 79.33 years). After eliminating the causes of death of gastric cancer, the life expectancy increased by 0.25 years (male 0.31 years, female 0.18 years). Significant decreasing trends were found in the proportion of gastric cancer in all malignant cancer cases (AAPC=-0.18%, 95%CI -2.0%--1.7%). Conclusion The mortality of gastric cancer decreases gradually from 1987 to 2019 in Harbin. After eliminating the causes of death of gastric cancer, the life expectancy increases by 0.25 years. Therefore, prevention and control should be strengthened.