Polyp Detection Rate and Associated Factors

Aims To determine the polyp detection rate as well as the associated factors.

Methods We conducted a retrospective study, including consecutively all colonoscopies performed in the gastroenterology department. We have specified parameters relating to patients, colonoscopy and pathological results of resected polyps. Factors related to polyp detection rate (PDR) were evaluated by uni and multivariate analysis.

Results Eight hundred and six colonoscopies were performed (420 (52.1 %) males; median age; 57.1±16 (17-92)). Suboptimal preparation (defined by a Boston score <7) was observed in 50.86 % of patients (n= 409). Eight hundred and six total colonoscopies detected 591 polyps in 252 patients. Polypectomy was performed in 218 patients. Anatomopathological examination showed: low-grade dysplastic adenoma in 56.2 % of cases, high-grade dysplastic adenoma in 13.17 % of cases, serrated polyps in 13.7 % of cases and hyperplastic polyps in 17.44 % of cases. Mean number of polyps was 2.33 ± 2.65 and PDR was 31.24 %. One hundred and twenty-seven colonoscopies detected more than one polyp. Large polyp detection rate (≥10 mm) was 9.67 % with detection of 78 polyps (13.19 % of polyps) in 53 patients. The neoplasia detection rate was 4.34 % (35 neoplasias). On univariate analysis, high PDR was significantly associated with patient-dependent factors: age ≥ 45 years (p <0.001), male gender (p = 0.002), family history of polyp or cancer (p = 0.003) and Boston score ≥7 (p = 0.0035). In multivariate analysis, the only factors associated with elevated PDR were age ≥ 45 years and a family history of polyp or colorectal neoplasia.

Conclusions In our series, we diagnosed polyps in more than a third of patients, regardless of their age and indications. On multivariate analysis, elevated PDR was significantly associated with a family history of polyp or cancer and patient age.

Citation: Ben Mohamed A, Laabidi S, Medhioub M et al. eP202 POLYP DETECTION RATE AND ASSOCIATED FACTORS. Endoscopy 2021; 53: S164.

Publication History

Article published online:
19 March 2021