[Analysis on the clustering of liver cancer mortality in Lingbi county, Anhui province, from 2005 to 2010].

Objective: To observe the mortality and its changes on liver cancer in the past 30 years as well as to describe the spatial distribution of liver cancer deaths between 2005 and 2010 in Lingbi, Anhui province.

Methods: Using the mortality data from 1973-1975 and from 2005 to 2010 in Lingbi to compare with the relative national and historical data, to observe the trend of rapid increase on liver cancer mortality in Lingbi. Using the Poisson model, BYM model and hotspot detection method, standardized mortality ratio(SMR), relative risk(RR)value of liver cancer deaths of each village were calculated and the clustering of high liver cancer deaths was identified.

[Association between mortality rate of hepatic carcinoma and the distance from Suihe River in Lingbi county, Anhui province].

Objective: To explore the association between mortality rate of hepatic carcinoma and the distance from Suihe River in Lingbi county, Suzhou, Anhui province.

Methods: Using the disease mapping and spatial statistical analysis techniques,we described the spatial distributions of the mortality rate of hepatic carcinoma from 2005 to 2010 in Lingbi county. Taking the distance between villages and polluted rivers as proxy variable of environmental exposure, mortality rate of hepatic carcinoma in each village as dependant variable, and using the Glimmix model and Bayesian spatial model (BYM) to undertake the univariate and multivariate analysis, we investigatived the association between mortality rate of hepatic carcinoma and the water pollution of Suihe River in Lingbi county.