Surveillance of malignant tumor incidence trend in Ningbo,2006 - 2009

Objective To understand and analyze the incidence trend and epidemiological characteristics of malignant tumor in Ningbo and provide evidence for the prevention and control of the diseases. Methods The data of malignant tumor incidences in Ningbo from 2006 to 2009 were collected to calculate the crude incidence,standardized incidence,age and sex distributions of the cases,rank of major malignant tumors and incidence trends in different years. Results The crude incidence of malignant tumor from 2006 to 2009 was 266.36/lakh,the age standardized incidence was 212.29/lakh. The incidence of malignant tumor increased with age. The incidence in males was 1.57 times of that in females. The crude incidence of malignant tumor increased obviously year by year. Conclusion Malignant tumor incidence in Ningbo was higher than the average level in Zhejiang province and China. Therefore,the efforts should be further strengthened on the etiological research,primary and secondary prevention of the disease.