Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, P. R. China.
Department of Epidemiology and Health Statistics & Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, P. R. China.
Cancer Commun (Lond). 2023 Jan;43(1):75-86. doi: 10.1002/cac2.12393. Epub 2022 Nov 17.
BACKGROUND: Over the past four decades, the Chinese government has conducted three surveys on the distribution of causes of death and built cancer registration. In order to shine a new light on better cancer prevention strategies in China, we evaluated the profile of cancer mortality over the forty years and analyzed the policies that have been implemented. METHODS: We described spatial and temporal changes in both cancer mortality and the ranking of major cancer types in China based on the data collected from three national surveys during 1973-1975, 1990-1992, 2004-2005, and the latest cancer registration data published by National Central Cancer Registry of China. The mortality data were compared after conversion to age-standardized mortality rates based on the world standard population (Segi's population). The geographical distribution characteristics were explored by marking hot spots of different cancers on the map of China. RESULTS: From 1973 to 2016, China witnessed an evident decrease in mortality rate of stomach, esophageal, and cervical cancer, while a gradual increase was recorded in lung, colorectal, and female breast cancer. A slight decrease of mortality rate has been observed in liver cancer since 2004. Lung and liver cancer, however, have become the top two leading causes of cancer death for the last twenty years. From the three national surveys, similar profiles of leading causes of cancer death were observed among both urban and rural areas. Lower mortality rates from esophageal and stomach cancer, however, have been demonstrated in urban than in rural areas. Rural areas had similar mortality rates of the five leading causes of cancer death with the small urban areas in 1973-1975. Additionally, rural areas in 2016 also had approximate mortality rates of the five leading causes with urban areas in 2004-2005. Moreover, stomach, esophageal, and liver cancer showed specific geographical distributions. Although mortality rates have decreased at most of the hotspots of these cancers, they were still higher than the national average levels during the same time periods. CONCLUSIONS: Building up a strong primary public health system especially among rural areas may be one critical step to reduce cancer burden in China.
背景:在过去的四十年里,中国政府进行了三次死因分布调查,并建立了癌症登记制度。为了为中国更好的癌症防治策略提供新的视角,我们评估了四十年来癌症死亡率的变化,并分析了实施的政策。
方法:我们根据 1973-1975 年、1990-1992 年、2004-2005 年三次全国调查和中国国家癌症中心最新公布的癌症登记数据,描述了中国癌症死亡率的时空变化,并分析了主要癌症类型的排名。死亡率数据经过世界标准人口(Segi 人口)年龄标准化后进行比较。通过在中国地图上标记不同癌症的热点,探索地理分布特征。
结果:从 1973 年到 2016 年,中国胃癌、食管癌和宫颈癌死亡率明显下降,而肺癌、结直肠癌和女性乳腺癌死亡率逐渐上升。自 2004 年以来,肝癌死亡率略有下降。然而,肺癌和肝癌已成为过去二十年癌症死亡的前两大原因。从三次全国调查来看,城乡地区癌症死亡的主要原因相似。然而,城市地区的食管癌和胃癌死亡率较低。与农村地区相比,城市地区的食管癌和胃癌死亡率较低。农村地区 1973-1975 年五种主要癌症死亡原因的死亡率与小城镇居民相似。此外,2016 年农村地区五种主要癌症死亡原因的死亡率与 2004-2005 年城镇居民相似。此外,胃癌、食管癌和肝癌有特定的地理分布。虽然这些癌症的大多数热点地区的死亡率有所下降,但在同一时期仍高于全国平均水平。
结论:加强农村地区的基层公共卫生体系建设可能是降低中国癌症负担的关键步骤之一。
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