2000—2015年中国肿瘤登记地区胃癌发病趋势及年龄变化

目的 了解中国胃癌发病趋势及年龄变化,为胃癌防控提供依据。方法 基于22个有连续数据的登记处,整理2000—2015年胃癌发病数据,利用Joinpoint软件进行发病趋势分析。分析2000—2015年平均发病年龄,2000及2015年标化年龄别发病构成,构建出生队列并计算1920—2015年出生人群发病率、年龄别发病率。结果 2000—2015年中国22个肿瘤登记地区胃癌标化发病率呈现下降趋势,平均每年下降3.0%(-3.5~-2.4%)。人群出现发病年龄后移趋势,人口结构标化后除农村地区外各人群发病年龄的后移趋势消失。农村地区发病年龄上升趋势明显,高年龄发病患者占比增加。结论 胃癌发病率出现下降趋势,平均发病年龄出现后移趋势。

Analysis on the trend of gastric cancer incidence and age change in cancer registration regions of China,2000 to 2015

Objective The objective of this study was to understand the trend and age change of gastric cancer in China,and to provide evidence for the prevention and control of gastric cancer.Methods Based on 22 registries with continuous data,the incidence data of gastric cancer from 2000 to 2015 were collated,and the incidence trend analysis was performed using Joinpoint software.The average age of onset between 2000 and 2015,the standardized age-specific incidence composition in 2000 and 2015 were analyzed.The birth cohort was constructed and the incidence and age-specific incidence were also calculated.Results From 2000 to 2015,the incidence of standardized gastric cancer in 22 cancer registration regions in China showed a downward trend,with an average annual decrease of 3.0%(-3.5%^-2.4%).The age of this disease onset in the population showed an increasing trend,after the population structure standardization,except for rural areas,this trend disappeared.The age of this disease onset in rural areas was raised,and the proportion of older patients was also increased.Conclusion The incidence of gastric cancer is declining,and the average age of onset shows an increasing trend.