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Published in: European Journal of Epidemiology 9/2023

27-08-2023 | Autopsy | REVIEW

Prevalence of incidental colorectal cancer and polyps in autopsies of different populations: a systematic review with meta-regression analysis

Authors: Shuting Wang, Zhirong Yang, Feng Sha, Xingshun Qi, Zhonghu He, Chun-Ho Szeto, Zuyao Yang, Jinling Tang

Published in: European Journal of Epidemiology | Issue 9/2023

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Abstract

The colorectal cancer (CRC) and polyps incidentally found in autopsies represent the lesions that have not actually caused problems throughout the lifetime and thus may not need to be removed during screening. This study aimed to investigate the prevalence of incidental CRC (iCRC) and polyps in autopsies of different populations. A systematic search was performed on 19 August 2022 to identify autopsy studies that provided data on prevalence of iCRC, adenomatous polyps, hyperplastic polyps, and/or all polyps combined. The prevalence was pooled with the random-effects model. Subgroup and multivariable meta-regression analyses were conducted to investigate the heterogeneity. Forty-three eligible studies including 59,656 autopsies were identified, with 94% conducted before 1990 when CRC screening was uncommon or not available. The pooled prevalence was 0.7% (95% confidence interval [CI], 0.3–1.2%) for iCRC, 18.4% (95% CI, 13.3–24.1%) for adenomatous polyps, 16.4% (95% CI, 8.7–25.9%) for hyperplastic polyps, 26.3% (95% CI, 15.4–38.8%) for all polyps combined, and 29.9% (95% CI, 14.8–47.6%) for iCRC plus polyps. The prevalence of iCRC was higher (1.2%) in white-predominant populations but lower (0.4%) after excluding low-quality studies. Multivariable analyses showed that the prevalence of polyps was higher in white-predominant populations and higher-quality studies, increased with age, and showed a downward trend from “before 1975” through “after 1985”. In conclusion, the prevalence of iCRC in autopsies was not low, considering the average lifetime risk of CRC, while incidental polyps were common. Both varied greatly in different populations. These findings may have implications when weighing the benefits and harms of screening.
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Literature
8.
go back to reference Hughes LE. The incidence of benign and malignant neoplasms of the colon and rectum: a post-mortem study. Aust N Z J Surg. 1968;38(1):30–5.CrossRefPubMed Hughes LE. The incidence of benign and malignant neoplasms of the colon and rectum: a post-mortem study. Aust N Z J Surg. 1968;38(1):30–5.CrossRefPubMed
14.
25.
go back to reference Szczepanski W, Urban A, Wierzchowski W. Colorectal polyps in autopsy material. Part I. adenomatous polyps. Patologia polska. 1992;43 3:79–85. Szczepanski W, Urban A, Wierzchowski W. Colorectal polyps in autopsy material. Part I. adenomatous polyps. Patologia polska. 1992;43 3:79–85.
27.
go back to reference Chávez-Macías LG, Jessurun J, Méndez Sánchez N. [Prevalence of adenomatous and hyperplastic polyps of the colon in the population of the General Hospital of Mexico. An autopsy study]. Rev Invest Clin. 1990;42(3):193–7.PubMed Chávez-Macías LG, Jessurun J, Méndez Sánchez N. [Prevalence of adenomatous and hyperplastic polyps of the colon in the population of the General Hospital of Mexico. An autopsy study]. Rev Invest Clin. 1990;42(3):193–7.PubMed
32.
go back to reference Lee YS. Adenomas, metaplastic polyps and other lesions of the large bowel: an autopsy survey. Ann Acad Med Singap. 1987;16(3):412–20.PubMed Lee YS. Adenomas, metaplastic polyps and other lesions of the large bowel: an autopsy survey. Ann Acad Med Singap. 1987;16(3):412–20.PubMed
40.
go back to reference Sato E. Adenomatous polyps of large intestine in autopsy and surgical material. Gan. 1974;65(4):295–306.PubMed Sato E. Adenomatous polyps of large intestine in autopsy and surgical material. Gan. 1974;65(4):295–306.PubMed
53.
go back to reference Helwig EB. Benign tumors of the large intestine. Surg Gynecol Obstet. 1943;76:419–26. Helwig EB. Benign tumors of the large intestine. Surg Gynecol Obstet. 1943;76:419–26.
54.
go back to reference Helwig EB. The evolution of adenomas of the large intestine and their relation to carcinoma. Surg Gynecol Obstet. 1947;84(1):36–49.PubMed Helwig EB. The evolution of adenomas of the large intestine and their relation to carcinoma. Surg Gynecol Obstet. 1947;84(1):36–49.PubMed
55.
go back to reference Atwater JS, Bargen J. The pathogenesis of intestinal polyps. Gastroenterology. 1945;4(5):395–408. Atwater JS, Bargen J. The pathogenesis of intestinal polyps. Gastroenterology. 1945;4(5):395–408.
58.
go back to reference Graversen H, Blaakaer J. The prevalence of colorectal adenomas-an autopsy study from Denmark. Scandinavian Journal of Gastroenterology; 1986. Graversen H, Blaakaer J. The prevalence of colorectal adenomas-an autopsy study from Denmark. Scandinavian Journal of Gastroenterology; 1986.
59.
go back to reference Michiels C. Prevalence des adenomes colorectaux dans le departement de la Cote d’Or: Resultats d’une serie autopsique. 1991. Michiels C. Prevalence des adenomes colorectaux dans le departement de la Cote d’Or: Resultats d’une serie autopsique. 1991.
63.
go back to reference Magaki S, Yong WH, Khanlou N, Tung S, Vinters HV. Comorbidity in dementia: update of an ongoing autopsy study. J Am Geriatr Soc. 2014. Magaki S, Yong WH, Khanlou N, Tung S, Vinters HV. Comorbidity in dementia: update of an ongoing autopsy study. J Am Geriatr Soc. 2014.
77.
84.
go back to reference Giovannucci E. An updated review of the epidemiological evidence that cigarette smoking increases risk of colorectal cancer. Cancer Epidemiol Biomarkers Prev. 2001;10(7):725–31.PubMed Giovannucci E. An updated review of the epidemiological evidence that cigarette smoking increases risk of colorectal cancer. Cancer Epidemiol Biomarkers Prev. 2001;10(7):725–31.PubMed
Metadata
Title
Prevalence of incidental colorectal cancer and polyps in autopsies of different populations: a systematic review with meta-regression analysis
Authors
Shuting Wang
Zhirong Yang
Feng Sha
Xingshun Qi
Zhonghu He
Chun-Ho Szeto
Zuyao Yang
Jinling Tang
Publication date
27-08-2023
Publisher
Springer Netherlands
Published in
European Journal of Epidemiology / Issue 9/2023
Print ISSN: 0393-2990
Electronic ISSN: 1573-7284
DOI
https://doi.org/10.1007/s10654-023-01041-0

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