Analysis On Mortality Of Malignant Tumors In Changchun From 1987 To 2004

Malignant tumor is a group of diseases that is threatening the health and lives of human kind. In recent years, the incidence and mortality of malignant tumor are growing wherever in developed countries or developing countries. In the 1990s, the deaths of malignant tumors ranked the second place in our country. It has been predicted that malignant tumor will become NO.1 killer of human kind. Therefore, the prevention and control of malignant tumor have become a focal point of global health strategy. The present study aimed to provide scientific basis for prevention and therapy of malignant tumor in Changchun by analyzing local deaths suffered malignant tumors from 1987 to 2004. The data came from annual report forms on Changchun residents died of injury and diseases, and the death of causes were classified by ICD-9. The mortality, PYLL, PYLL rate were standardized according to standard population compositions of China in 1982. PYLL, PYLLR and life expectancy were calculated at standard age 70.38621 people died of malignant tumors from 1987-2004 in Changchun (including male 23126 and female 15495, and male: female ratio 1.49), which accounted for 20.49% of the whole deaths and 99.33% of whole tumor deaths. The annual death rate of malignant tumors was 107.87/105 and the standardized mortality was 92.45/105 ( male 126.75/105 with standardized mortality 101.54/105, female 88.25/105 with standardized mortality 89.13/105). The top 5 order of death causes were heart disease, cerebrovascular disease, malignant tumors, respiratory diseases, injury and poisoning. Among the malignant tumors, the lung cancer death rate ranked top, accounting for 33.78% with 36.44/105 and standardized mortality 31.63/105. 32506 people( male 19789 and female 12717) died of malignant tumors which ranked top 10 death causes, accounted for 84.17%, and the top 10 order of death causes of Malignant tumor were lung cancer, liver cancer, gastric carcinoma, intestine cancer, esophageal carcinoma, breast cancer, leukeamia, carcinoma of bladder, cervix carcinoma and nasopharyngeal cancer. 6115 people died of the rest malignant tumors, accounted for 15.87%. Lung cancer ranked top both in male and female order of death causes of malignant tumors. the top 8 order of death causes of Malignant tumor of male were: lung cancer, liver cancer, gastric carcinoma, intestine cancer, esophageal carcinoma, leukeamia, carcinoma of bladder and nasopharyngeal cancer and the top 10 order of death causes of Malignant tumor of females were lung cancer, liver cancer, gastric carcinoma, intestine cancer, breast cancer, cervix carcinoma,leukeamia, esophageal carcinoma, carcinoma of bladder and nasopharyngeal cancer. The male deaths rate of malignant tumors were all higher than those of female except cervix carcinoma, breast cancer, leukeamia, with sexual ratio 1.44:1. And there was difference between the death rate of same age groups of male and female. The death rate of female children below the age of 15 was higher than that of male children, while the death rate of male above 15 was increasingly higher than that of female with aging. According to age distribution of malignant tumors, constituent ratio of death of children aged 0~14 of leukeamia ranked top of all malignant tumors; for youngsters aged 15~34, constituent ratio of death of lung cancer ranked top of all malignant tumors, followed by leukeamia and live cancer et al. leukeamia and live cancer were common death causes and leukemia was still a threatening disease. For the middle-aged 35~64 , constituent ratio of death of lung cancer ranked top of all malignant tumors. In the above 65 years old group, constituent ratio of death of lung cancer still ranked top, followed by liver cancer and gastric cancer et al. 75.13 years of natural life is expected to achieve in the early 21st century, but 3.44 years of natural life is reduced due to malignant tumors. The PYLL (potential years of life lost)of malignant tumors of Changchun residents from 1987 to 2004 were 342170 person year, and the PYLL ratewas 9.560/00. The standardized PYLL rate was 8.72 0/00, and average years of life loss was 8.86 years. Constituent ratio of potential years of life lost of leukeamia ranked 4th and was significantly higher than constituent ratio of death cause (ranked 7th). The top 5 early death causes for residents were lung cancer, liver cancer, gastric cancer, leukeamia and intestine cancer. The death sequence of malignant tumors has been preceded in 18 years. The male death rate of intestine cancer had a fastest growth and female death rate of liver cancer grew fastest. The annual average death rate of malignant tumor of Chanchun residents was lower than that of national urban residents (118.4/105) and standardized mortality of residents in Fujian (99.11/105), but higher than the standardized mortality of residents in Shanghai (80.14/105), Zhengzhou of Henan Province (60.00/105). Malignant tumors has became a main cause of the death in Changchun residents, which may attribute to the aging population since the old were high risk group of deaths. Therefore we should strengthen the health medical care of the old and the prevention and cure of malignant tumor. The death rates of intestine cancer in male and liver cancer in female were growing fastest which seriously threatened the health of the residents. We should pay more attention to them in our future prevention and therapy for malignant tumors. There were no reports about the analysis of deaths of malignant tumors in Jilin Province. The present study analyzed the deaths of malignant tumors in Changchun and provided scientific basis for tumor prevention and therapy in Jilin Province.