Analysis of Cancer Incidence and Mortality in Zhejiang Cancer Registries,2012

[Purpose] To investigate the cancer incidence and mortality in Zhejiang cancer registries in 2012. [Methods] The data were collected from 8 population-based cancer registries of Zhejiang province. Cancer incidence and mortality stratified by gender and regions were analyzed.Crude rate,age-standardized rate,age-specific and region-specific rate,cumulative rate and truncated rate were calculated. The proportion of 10 common cancers in different groups were also calculated. Chinese population census in 2000 and Segi’s population were used for calculating age-standardized incidence and mortality. [Results] The 8 cancer registries covered a total of 11127 744 population,accounting for 20.34% of Zhejiang population. The total reported new cancer cases and deaths were 35 771 and 20 560,respectively. The morphology verified cases(MV%) accounted for 74.86%,and 1.58% of cases were identified through death certifications only(DCO%)with mortality to incidence ratio(M/I ratio) of 0.57. The crude incidence in Zhejiang cancer registration areas was 321.46/10~5;the age-standardized incidence by Chinese standard population and by world standard population were 200.91/10~5 and 193.01/10~5,respectively. The incidence in male was higher than that in female,and the incidence in urban areas was higher than that in rural areas. Cancer incidence increased rapidly after the age of 40 years and reached the peak at the age group of 80~84 years. The top 10 incidence of cancers were lung cancer,colorectum cancer,stomach cancer,thyroid cancer,liver cancer,breast cancer,esophagus cancer,cervix cancer,pancreas cancer and brain tumor. The crude mortality in Zhejiang cancer registration areas was 184.76/10~5;the age-standardized mortality rates by Chinese standard population and by world standard population were 200.91/10~5 and 193.01/10~5,respectively. The mortality in male was higher than that in female,and the male in rural areas was higher than that in urban areas. Cancer mortality increased rapidly after the age of 45 years and reached the peak at the age group of 80~84 years. The top 10 mortality of cancers were lung cancer,liver cancer,stomach cancer,colorectum cancer,esophagus cancer,pancreas cancer,lymphoma,leukemia,brain tumor and gallbladder cancer. [Conclusions]Lung cancer,digestive system malignancies and breast cancer are the most common cancers in Zhejiang province. These cancers should be focused on. The incidences of thyroid cancer and cervical cancer increased rapidly. Prevention and control measures should be implemented on these cancers.