The burden and trend of liver metastases in Shanghai, China: a population-based study

Studies on the epidemiology of liver metastases (LM)-related mortality are rare. we aimed to describe the burden and trend of liver metastases in Pudong of Shanghai, which could be beneficial to cancer prevention.

We performed a retrospective population-based analysis of cancer mortality data with liver metastases in Shanghai Pudong from 2005 to 2021. Long-term trends in crude mortality rates (CMRs), age-standardized mortality rates worldwide, and rate of years of life lost (YLL) were analyzed by the Join-point regression model. In addition, we evaluate the impact of the demographic and nondemographic factors on the mortality of disease by the decomposition method.

Cancer with liver metastases accounted for 26.68% of all metastases. The CMR and age-standardized mortality rates by Segi's world population (ASMRW) of cancer with liver metastases were 15.12/105 person-years and 6.33/105 person-years, respectively. The YLL from cancer with liver metastases was 84 959.87 years, with the age group of 60-69 years having the highest YLL of 26 956.40 years. The top three cancer types in liver metastases are colorectal, gastric, and pancreatic cancer. The long-term trend of ASMRW significantly decreased by 2.31% per year ( P <0.05). The ASMRW and YLL rates of those over 45 decreased year by year. Particularly striking was the 70-79 age group. Although the overall mortality of cancer with liver metastases decreased, there was still a significant upward trend toward an increased mortality rate caused by cancer with liver metastases in aging patients.

Liver metastases were a common site of metastases in patients with cancers originating from the digestive system. The disease burden caused by cancer with liver metastases provides valuable evidence for cancer management.