Volume 39, Issue 4 pp. 694-700
Original Article - Gastroenterology (Clinical)

Prevalence and risk factors of colorectal neoplasia in individuals aged 40–49 years: Findings from screening program in China

Mingqing Zhang

Mingqing Zhang

Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China

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Yongdan Zhang

Yongdan Zhang

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

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Wen Zhang

Wen Zhang

Center for Applied Mathematics, Tianjin University, Tianjin, China

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Yong Zhang

Yong Zhang

Center for Applied Mathematics, Tianjin University, Tianjin, China

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Lizhong Zhao

Lizhong Zhao

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

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Haoren Jing

Haoren Jing

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

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Xinyu Gao

Xinyu Gao

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

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Zhenguo Nie

Zhenguo Nie

Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China

School of Medicine, Nankai University, Tianjin, China

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Siwei Zhu

Corresponding Author

Siwei Zhu

Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China

Correspondence

Siwei Zhu, The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China. Email: [email protected]; Shiwu Zhang, Department of Pathology, Tianjin Union Medical Center, Tianjin 2755-7131, China. Email: [email protected]; Xipeng Zhang, Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 2755-7131, China.

Email: [email protected]

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Shiwu Zhang

Corresponding Author

Shiwu Zhang

The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China

Department of Pathology, Tianjin Union Medical Center, Tianjin, China

Correspondence

Siwei Zhu, The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China. Email: [email protected]; Shiwu Zhang, Department of Pathology, Tianjin Union Medical Center, Tianjin 2755-7131, China. Email: [email protected]; Xipeng Zhang, Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 2755-7131, China.

Email: [email protected]

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Xipeng Zhang

Corresponding Author

Xipeng Zhang

Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China

School of Medicine, Nankai University, Tianjin, China

Tianjin Institute of Coloproctology, Tianjin, China

The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China

Correspondence

Siwei Zhu, The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China. Email: [email protected]; Shiwu Zhang, Department of Pathology, Tianjin Union Medical Center, Tianjin 2755-7131, China. Email: [email protected]; Xipeng Zhang, Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 2755-7131, China.

Email: [email protected]

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First published: 10 January 2024

Declaration of conflict of interest: The authors disclose no conflicts. The funding source had no role in study design, data collection, analysis, or interpretation, report writing, or the decision to submit this paper for publication.

Ethics approval: Given that our study involved only a descriptive analysis of individual data without direct or indirect patient intervention, we did not require approval from a research ethics committee. Additionally, we ensured that all investigations and methods employed in the study adhered to the principles outlined in the Declaration of Helsinki.

Informed consent: Obtaining informed consent from individuals when participating in screening program.

Financial support: This study was funded by Foundation of Tianjin Union Medical Center (No. 2016RMNK002, 2019ZDXK04, and 2022GCXK005); by the Foundation of Committee on Science and Technology of Tianjin (No. 21JCYBJC01090 and 21JCZDJC00990); by Tianjin Key Medical Discipline (Specialty) Construction Project (No. TJYXZDXK-044A).

Abstract

Background and Aim

The incidence of colorectal cancer (CRC) in individuals under 50 is increasing worldwide. We conducted an analysis of colonoscopy findings in high-risk individuals under 50 in the CRC screening program in Tianjin, China, to determine the detection rate and risk factors of advanced adenomas (AA), advanced colorectal neoplasia (ACN), colorectal neoplasia (CN).

Methods

Our study investigated individuals aged 40–49 who underwent CRC screening and completed colonoscopy, 2012–2020, while the 50–54 age group served as a control. We compared the detection rates of AA, ACN, and CN among three age groups using univariate and multivariable logistic regression analyses, and investigated the risk factors associated with AA, ACN, and CN among individuals aged 40–49.

Results

We found a gradual increase in the detection rate of AA, ACN, and CN among individuals aged 40–54. The detection rates for AA (OR 0.58; 95% CI 0.41–0.81), ACN (OR 0.58; 95% CI 0.43–0.77), and CN (OR 0.64; 95% CI 0.56–0.74) were lower in individuals aged 40–44 compared to 45–49. The detection rates of AA (OR 1.08; 95% CI 0.87–1.34) and ACN (OR 1.12; 95% CI 0.93–1.35) in individuals aged 45–49 were comparable with 50–54. Besides, lifestyle factors, BMI, and FIT are not associated with the detection rates of AA, ACN, and CN among individuals aged 40–49.

Conclusions

Our study reveals screening data in individuals under 50, indicating comparable detection rates of AA and ACN in individuals aged 45–49 and 50–54. These findings provide valuable data support for optimizing the optimal age to initiate screening.

Graphical Abstract

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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