Hong Mei Qu1, Ya Na Bai2, Ning Cheng3, Min Dai4, Tong Zhang Zheng5, Dennis Wang5, Hai Yan Li6, Xiao Bin Hu7, Juan Sheng Li7, Xiao Wei Ren7, Hui Shang6. 1. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; Medical College, Northwest University for Nationalities, Lanzhou 730030, Gansu, China. 2. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; Center for Cancer Prevention and Treatment, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China. 3. College of Basic Medicine, Lanzhou University, Lanzhou 730000, Gansu, China. 4. Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China. 5. School of Public Health, Yale University, New Haven, CT 06520, United States. 6. Jinchuan Worker's Hospital, Jinchuan Nonferrous Metals Corporation, Jinchang 737103, Gansu, China. 7. Center for Cancer Prevention and Treatment, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China.
Abstract
OBJECTIVE: To describe the baseline data of cancers in the Jinchang Cohort, this paper examined trends in cancer mortality among adults investigated in Jinchang, Gansu province from 2001 to 2010. METHODS: Mortality data were collected from company departments through administrative documents, death certificates, etc. Trend analyses of cancer mortality were performed on the basis of 925 cancer deaths between 2001 and 2010. RESULTS: The crude mortality rate of cancer continuously increased from 161.86 per 100,000 in 2001 to 315.32 per 100,000 in 2010, with an average increase of 7.69% per year in the Jinchang Cohort (16.41% in females compared to 6.04% in males), but the age-standardized mortality rate increased only in females. Thirteen leading cancers accounted for 92.10% of all cancer deaths. The five leading causes of cancer mortality in males were lung, gastric, liver, esophageal, and colorectal cancer, whereas those in females were lung, liver, gastric, breast, and esophageal cancer. CONCLUSION: The overall cancer mortality rate increased from 2001 to 2010 in the Jinchang Cohort, with greater rate of increase in females than in males. Lung, breast, and gastric cancer, in that order, were the leading causes of increased cancer mortality in females.
OBJECTIVE: To describe the baseline data of cancers in the Jinchang Cohort, this paper examined trends in cancer mortality among adults investigated in Jinchang, Gansu province from 2001 to 2010. METHODS: Mortality data were collected from company departments through administrative documents, death certificates, etc. Trend analyses of cancer mortality were performed on the basis of 925 cancer deaths between 2001 and 2010. RESULTS: The crude mortality rate of cancer continuously increased from 161.86 per 100,000 in 2001 to 315.32 per 100,000 in 2010, with an average increase of 7.69% per year in the Jinchang Cohort (16.41% in females compared to 6.04% in males), but the age-standardized mortality rate increased only in females. Thirteen leading cancers accounted for 92.10% of all cancer deaths. The five leading causes of cancer mortality in males were lung, gastric, liver, esophageal, and colorectal cancer, whereas those in females were lung, liver, gastric, breast, and esophageal cancer. CONCLUSION: The overall cancer mortality rate increased from 2001 to 2010 in the Jinchang Cohort, with greater rate of increase in females than in males. Lung, breast, and gastric cancer, in that order, were the leading causes of increased cancer mortality in females.