1. School of Public Health, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550000, China; 2. Guiyang Center for Disease Control and Prevention (Guiyang Institute of Public Health Supervision), Guiyang, Guizhou 550018, China
Abstract：Objective To understand the disease burden of malignant tumor in Guiyang City, Guizhou Province in 2022, so as to provide references for strengthening the prevention and control of malignant tumors. Methods Data on the incidence and mortality of malignant tumor in Guiyang City in 2022 were collected through the tumor follow-up registration and death surveillance system of the "Healthy Guizhou Smart Disease Control Cloud Platform". The Chinese population-standardized incidence and world population-standardized incidence were calculated using the standard age structure from the Seventh National Population Census in 2020 and Segi's world standard population structure, respectively. A descriptive analysis was conducted to examine the characteristics of the disease burden of malignant tumor by gender, region and age group. Results In 2022, the crude incidence, Chinese population-standardized incidence and world population-standardized incidence of malignant tumor in Guiyang City were 236.14/105, 182.09/105 and 175.20/105, respectively. The crude mortality, Chinese population-standardized mortality and world population-standardized mortality were 136.97/105, 97.81/105 and 97.69/105, respectively, and the DALY rate was 1 445.62/105. The crude incidence (P<0.05), Chinese population-standardized incidence, and world population-standardized incidence of malignant tumor were higher in females than in males, while the crude mortality rate (P<0.05), the Chinese population-standardized mortality, world population-standardized mortality rate, and DALY rate were all lower in females than in males. The Chinese population-standardized incidence and world population-standardized incidence of malignant tumor in urban areas were higher than in rural areas, while the crude mortality (P<0.05), Chinese population-standardized mortality, world population-standardized mortality, and DALY rate were all lower in urban areas than in rural areas. The crude incidence of malignant tumor was lower in the 0-<40 age group, increased rapidly after the age of 40 years, and peaked in the ≥85 age group; the crude mortality and DALY rate were lower in the 0-<45 age group, increased rapidly after the age of 45 years, and peaked in the ≥85 and 80-<85 age groups, respectively. Lung cancer ranked first in crude incidence, crude mortality, and DALY rate of malignant tumor. Thyroid cancer and colorectal cancer, colorectal cancer and liver cancer, and liver cancer and colorectal cancer ranked second and third in crude incidence, crude mortality, and DALY rate, respectively. Conclusion In 2022, the disease burden of malignant tumor in Guiyang City was characterised by higher incidence in females and urban residents, higher mortality in males and rural residents, higher risks of incidence and mortality in middle-aged and elderly populations, with lung cancer, colorectal cancer, and liver cancer being the key diseases for prevention and control.
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