Survival Analysis of Three Malignant Tumors with the Highest Risk of Death in Jiashan County,Zhejiang Province from 2006 to 2020
[Purpose]To analyze the survival of lung cancer,liver cancer and stomach cancer in Jiashan County,Zhejiang Province from 2006 to 2020.[Methods]From January 1,2006 to De-cember 31,2020,new cases of lung cancer,liver cancer and stomach cancer were collected in Jiashan County,Zhejiang Province.The 5-year observed survival rate(OSR),relative survival rate(RSR)and age-standardized relative survival rate(ARSR)by sex and age were calculated from 2006-2010,2011-2015 and 2016-2020.The observed and relative survivals were calculated using the lifetime table and Ederer Ⅱ methods,respectively,and age standardized using the Inter-national Cancer Survival Standard.Joinpoint software was utilized to compute the average annual percentage change(AAPC)for analyzing trends in various survival rates from 2006 to 2020.[Re-sults]The 5-year RSR of lung cancer,liver cancer and stomach cancer increased from 8.1％,4.8％and 23.2％(2006-2010)to 36.0％,17.6％and 48.2％(2016-2020),showing an increasing trend(AAPC=14.4％,AAPC=11.4％,AAPC=6.4％,respectively,all P＜0.05).Accordingly,the 5-year RSR of three types of malignant tumors showed an increasing trend in both men and women(all P＜0.05)except liver cancer in women(P＞0.05).The 5-year RSR of three types of malignant tu-mors in the age groups of 0～64 and 65+years old showed a significant increasing trend(all P＜0.05).The increase of lung cancer and liver cancer was greater in the age group of 0～64 years old,and the increase of gastric cancer was greater in the age group of 65+years old.[Conclusion]The 5-year survival rates of the three types of malignant tumors with the highest mortality risk in Jiashan County,Zhejiang Province all increased significantly from 2006 to 2020,indicating that the pre-vention and treatment effect of malignant tumors is significant,but the survival rate of malignant tumors varied significantly among different populations,so targeted intervention should be carried out.
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