Journal of Practical Oncology ›› 2025, Vol. 39 ›› Issue (3): 169-176.doi: 10.11904/j.issn.1002-3070.2025.03.001

• Cancer Surveillance •     Next Articles

Analyses for the incidence and mortality characteristics of malignant tumors in the cancer registration areas of Kunming City,Yunnan Province in 2020 and their trend from 2016 to 2020

LI Ji1, ZHANG Maorong1, YANG Zhao1, WEN Hongmei2, WU Fuxian2, LI Yuntao1   

  1. 1. Department of Non-communicable Disease Control and Prevention,Kunming Center for Disease Control and Prevention,Kunming 650034,China;
    2. Institute of Non-communicable Disease Control and Prevention,Yunnan Center for Disease Control and Prevention
  • Received:2025-02-18 Revised:2025-04-20 Online:2025-06-28 Published:2025-07-02

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Abstract: Objective The aim of this study was to analysis the incidence and mortality of malignant tumors in the cancer registration area of Kunming City in 2020,as well as the trend of changes from 2016 to 2020. Methods The malignant tumor data of 12 cancer registration areas in Kunming in 2020 that met the quality criteria were used to analyze the crude incidence,crude mortality,age-standardized incidence/mortality rate by Chinese standard population(ASIRC/ASMRC)of malignant tumors in different genders and regions.The annual percentage change(APC)was calculated using Joinpoint 5.3.0.0 software,the incidence and mortality trends of malignant tumors from 2016 to 2020 were evaluated. Results In 2020,the crude incidence and ASIRC of malignant tumors in cancer registration areas of Kunming City were 234.27/100,000 and 141.68/100,000,respectively.The ASIRC of males was higher than that of females(146.94/100,000 vs. 137.33/100,000,Z=3.459,P＜0.001),and that of rural areas was higher than that of urban areas(146.37/100,000 vs. 134.09/100,000,Z=-4.462,P＜0.001).The crude mortality and ASMRC of malignant tumors were 135.67/100,000 and 73.18/100,000,respectively.The ASMRC of males was higher than that of females(91.65/100,000 vs. 55.43/100,000,Z=19.260,P＜0.001),and that of rural areas was higher than that of urban areas(76.27/100,000 vs. 70.00/100,000,Z=-3.359,P＜0.001).There were 81.39% of new cases and 90.36% of deaths of malignant tumors occurred in the population aged 50 and above.The top 5 cancer incidence in the Kunming City were lung cancer,colorectal cancer,breast cancer,liver cancer and prostate cancer.The top 5 cancer mortality were lung cancer,liver cancer,colorectal cancer,prostate cancer and stomach cancer.The ASIRC(APC=-3.05%,95% CI:-5.91%-0.10%,P=0.046)and ASMRC(APC=-5.47%,95% CI:-8.52%-2.32%,P=0.012)of malignant tumors in urban areas of Kunming showed a downward trend. Conclusions From 2016 to 2020,the ASIRC and ASMRC of malignant tumors in urban areas of Kunming showed a downward trend,but there was no significant changing trend in rural tumor registration areas.Rural areas are key areas for the prevention and treatment of malignant tumors in Kunming city;Lung cancer,colorectum cancer,liver cancer and prostate cancer are the key types of cancer for prevention and treatment.

Key words: Malignant tumors, Incidence, Mortality, Trend analysis, Kunming City

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