Abstract:

Objective To clarify the changes in incidence and mortality of various cancers based on analysis on registration data of malignant tumor incidence and mortality from Dehui City and Yanji City in Jilin Province. Methods The incidence and mortality data of malignant tumors from 2009 to 2016 in Dehui City and Yanji City in Jilin Province， were collected from the Chinese Cancer Registry Annual Report published by the National Cancer Center. The number of cases， deaths， crude incidence rate， crude mortality rate， age-standardized incidence rate （ASIR）， age-standardized mortality rate （ASMR）， and annual percentage change （APC） of the malignant tumors were analyzed by cancer sites and genders. Results From 2009 to 2016， the CIR of malignant tumors in Dehui City （APC=1.2%， P=0.019） and Yanji City （APC=3.6%， P=0.058） showed an increasing trend. After standard population age adjustment， the ASIR in males in Dehui City showed a significant decline （APC=-5.7%， P=0.021）， while the ASIR in females exhibited an overall downward trend， but the difference was not significant （APC=-2.2%， P=0.111）. In Yanji City， the ASIR in males （APC=-1.4%， P=0.535） and females （APC=0.0%， P=0.988） showed no significant changes. The CMR of malignant tumors in Dehui City （APC=1.9%， P=0.001） and Yanji City （APC=5.9%， P=0.001） showed a continuous upward trend. After age-standardization， the ASMR in males （APC=-3.1%， P=0.100） and females （APC=-4.2%， P=0.053） in Dehui City， as well as in males （APC=-1.3%， P=0.438） in Yanji City， showed a slight downward trend. Although the ASMR in females in Yanji City showed a slight increase， the difference was not statistically significant （APC=0.5%， P=0.838）. In 2016， the most common malignant tumor in terms of both incidence and mortality in Dehui City was lung cancer， with a CIR of 60.76/100 000 and a CMR of 46.96/100 000. In Yanji City， the most common malignant tumor was liver cancer， with a CIR of 49.04/100 000 and a CMR of 51.09/100 000. Conclusion Lung cancer， liver cancer， and gastric cancer are the major malignant tumors threatening residents in Dehui City， Yanji City， and even the entire Jilin Province， and should be prioritized in cancer prevention and control efforts. Early diagnosis and treatment should be strengthened.

Key words: Malignant tumor, Age-standardized incidence rate, Age-standardized mortality rate, Crude incidence rate of malignant tumor, Crude mortality rate of malignant tumor, Annual percentage change