Turkish Journal of Gastroenterology
Original Article

A New Risk-Scoring System for Colorectal Cancer and Polyp Screening by Turkish Colorectal Cancer and Polyp Study Group


Department of Gastroenterology, Demiroğlu Bilim University Faculty of Medicine, İstanbul, Turkey


Department of Gastroenterology, Edirne State Hospital, Edirne, Turkey


Department of Gastroenterology, Mersin University Faculty of Medicine, Mersin, Turkey


Department of Gastroenterology, Harran University Faculty of Medicine, Şanlıurfa, Turkey


Department of Gastroenterology, Kartal Lütfü Kırdar Education and Research Hospital, İstanbul, Turkey


Department of Gastroenterology, Koç University Faculty of Medicine, İstanbul, Turkey


Department of Gastroenterology, Kocaeli University Faculty of Medicine, İstanbul, Turkey


Department of Gastroenterology, Şişli Etfal Education and Research Hospital, İstanbul, Turkey


Department of Gastroenterology, Bakırköy Education and Research Hospital, İstanbul, Turkey


Department of Gastroenterology, Ümraniye Education and Research Hospital, İstanbul, Turkey


Department of Gastroenterology, Kahramanmaraş Provincial Directorate of Health Necip Fazıl City Hospital, Kahramanmaraş, Turkey


Department of Gastroenterology, Medical Park Hospital, Ankara, Turkey


Department of Gastroenterology, Denizli State Hospital, Denizli, Turkey


Department of Gastroenterology, Hitit University Faculty of Medicine, Çorum, Turkey


Department of Gastroenterology, Ufuk University Faculty of Medicine, Ankara, Turkey


Department of Gastroenterology, Mehmet Akif İnan Education and Research Hospital, Şanlıurfa, İstanbul


Department of Gastroenterology, İstanbul University Faculty of Medicine, İstanbul, Turkey


Department of Internal Medicine, Acıbadem University Faculty of Medicine, İstanbul, Turkey


Department of Gastroenterology, Acıbadem University Faculty of Medicine, İstanbul, Turkey

Turk J Gastroenterol 2022; 33: 286-293
DOI: 10.5152/tjg.2022.21072
Read: 1 Downloads: 1 Published: 01 April 2022

Background: Colorectal cancer is one of the most commonly diagnosed types of cancer worldwide. An early diagnosis and detection of colon cancer and polyp can reduce mortality and morbidity from colorectal cancer. Even though there are a variety of options in screen- ing tests, the question remains on which test is the most effective for the early detection of colorectal cancer. In this prospective study, we aimed to develop a simple, useful, effective, and reliable scoring system to detect colon polyp and colorectal cancer.

Methods: We enrolled 6508 subjects over the age of 18 from 16 centers, with colonoscopy screening. The age, smoking status, alcohol consumption, body mass index, polyp incidence, polyp size, number and localization, and pathologic findings were recorded.

Results: The age, male gender, obesity, smoking, and family history were found as independent risk factors for adenomatous polyp. We have developed a new scoring system which can be used for these factors. With a score of 4 or above, we found the following: sensitivity 81%, specificity 40%, positive predictive value 25.68%, and negative predictive value 89.84%, for adenomatous polyp detection; and sensitivity 96%, specificity 39%, positive predictive value 3.35%, negative predictive value 99.29%, for colorectal cancer detection.

Conclusion: Even though the first colorectal cancer screening worldwide is generally performed for individuals over 50 years of age, we recommend that screening for colorectal cancer might begin for those under 50 years of age as well. Individuals with a score ≥ 4 must be included in the screening tests for colorectal cancer.

Cite this article as: Erdem L, Akbal E, Koçak E, et al. A new risk-scoring system for colorectal cancer and polyp screening by Turkish colorectal cancer and polyp study group. Turk J Gastroenterol. 2022;33(4):286-293.

EISSN 2148-5607