Introduction: Colorectal cancer is one of the most sprayed cancers; the gold standard of diagnostic is a colonoscopy. The quality of this examination is depended on many factors, which includes doctors' experience.
Purpose: The purpose of this study is to establish the main factors affecting the completeness of colonoscopy in colorectal cancer screening.
Materials And Methods: Endoscopists were questioned; descriptive statistics methods and logistic regression were used.
Results And Discussion: The main factors that influence the quality of screening colonoscopy were identified: experience in colonoscopy, theoretical training, participation in the screening program, and number of annual colonoscopies. The calculated odds ratio for the selected dependent variable is calculated.
Conclusions: The experience for more than 5 years (p = 0.017) and at least 200 colonoscopies per year (p = 0.004) are the main factors that allow to perform complete colonoscopy in 90% or more of cases.
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