浙江省肝癌死亡率地理特征分析

Trend-surface Analysis of Geographical Distribution of Liver Cancer Mortality in Zhejiang Province

目的应用趋势面分析方法研究浙江省肝癌空间分布规律,为肝癌预防控制提供线索。方法利用2007年浙江省公共卫生监测区死亡监测数据库,结合各监测点地理位置,建立趋势面函数进行分析。结果肝癌死亡分布呈现明显的地域规律性,拟合优度达到57.64%。浙江省肝癌死亡率呈现由西向东逐渐升高趋势。结论肝癌死亡在浙江省内有地域差异,对于异常点有待于进一步的研究,为肝癌影响因素的研究提供线索。

Objective To explore the geographical distribution of liver cancer mortality in Zhejiang province by trend-surface analysis, offering a clue for prevention and control of liver cancer. Methods Utilizing death surveillance data of different regions in 2007, trend-surface function combined with longitude and latitude was used. Results The mortality of liver cancer had geographical distribution trend in Zhejiang province and its fitting goodness reached 57.64%. Additionally, the mortality of liver cancer showed a gradually rising trend from west to east. Conclusion The mortality of liver cancer shows geographical difference in Zhengjiang province. More attention should be paid to those abnormal area to provide clues for risk factors of liver cancer.