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. 2021 Feb 28;33(1):1-10.
doi: 10.21147/j.issn.1000-9604.2021.01.01.

Colorectal cancer burden and trends: Comparison between China and major burden countries in the world

Jiachen Zhou  1   2 , Rongshou Zheng  2 , Siwei Zhang  2 , Hongmei Zeng  2 , Shaoming Wang  2 , Ru Chen  2 , Kexin Sun  2 , Minjuan Li  2 , Jianhua Gu  2 , Guihua Zhuang  1 , Wenqiang Wei  2
Affiliations

Colorectal cancer burden and trends: Comparison between China and major burden countries in the world

Jiachen Zhou et al. Chin J Cancer Res. .

Abstract

Objective: To summarize the colorectal cancer (CRC) burden and trend in the world, and compare the difference of CRC burden between other countries and China.

Methods: Incidence and mortality data were extracted from the GLOBOCAN2018 and Cancer Incidence in Five Continents. Age-specific incidence trend was conducted by Joinpoint analysis and average annual percent changes were calculated.

Results: About 1.85 million new cases and 0.88 million deaths were expected in 2018 worldwide, including 0.52 million (28.20%) new cases and 0.25 million (28.11%) deaths in China. Hungary had the highest age-standardized incidence and mortality rates in the world, while for China, the incidence and mortality rates were only half of that. CRC incidence and mortality were highly correlated with human development index (HDI). Unlike the rapid increase in Republic of Korea and the downward trend in Canada and Australia, the age-standardized incidence rates by world standard population in China and Norway were rising gradually. The age-specific incidence rate in the age group of 50-59 years in China was increasing rapidly, while in Republic of Korea and Canada, the fastest growing age group was 30-39 years.

Conclusions: The variations of CRC burden reflect the difference of risk factors, as well as levels of HDI and screening (early detection activities). The burden of CRC in China is high, and the incidence of CRC continues to increase, which may lead to a sustained increase in the burden of CRC in China in the future. Screening should be expanded to control CRC, and focused on young people in China.

Keywords: China; Colorectal cancer; burden; trend.

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Figures

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1
Rank of countries with major burden of CRC in (A) male and (B) female in 2018. CRC, colorectal cancer; ASIRW, age-standardized incidence rate by world standard population; ASMRW, age-standardized mortality rate by world standard population
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2
Ecological correlation between a country’s HDI and CRC crude incidence rates (P<0.0001) (A) and mortality rates (P<0.0001) (B), respectively, in 2018. HDI, human development index; CRC, colorectal cancer.
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Trend changes of ASIRW of CRC in China and major burden countries in five continents. (A) Male colon incidence; (B) Male rectum and anus incidence; (C) Male CRC incidence; (D) Female colon incidence; (E) Female rectum and anus incidence; (F) Female CRC incidence. ASIRW, age-standardized incidence rate by world standard population; CRC, colorectal cancer.
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Age-specific incidence trends in CRC between Republic of Korea, Canada and China. (A) Males of China; (B) Males of Republic of Korea; (C) Males of Canada; (D) Females of China; (E) Females of Republic of Korea; (F) Females of Canada. CRC, colorectal cancer.
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