Characteristics of and risk factors for colorectal neoplasms in young adults in a screening population |
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Authors: | Seung Eun Lee Hee Bum Jo Won Gun Kwack Yun Jin Jeong Yeo-Jin Yoon Hyoun Woo Kang |
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Institution: | Seung Eun Lee, Hee Bum Jo, Won Gun Kwack, Yun Jin Jeong, Yeo-Jin Yoon, Hyoun Woo Kang, Department of Internal Medicine, Dongguk University Ilsan Hospital, College of Medicine, Dongguk, Goyang, Gyeonggi-do 410-773, South Korea |
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Abstract: | AIM: To investigate prevalence and risk factors for colorectal neoplasms in adults aged < 50 years, for whom screening is not recommended.METHODS: This cross-sectional study compared prevalence and characteristics of colorectal and advanced adenomas in patients aged < 50 years who underwent colonoscopy screening with subjects aged ≥ 50 years. To evaluate risk factors for colorectal and advanced adenoma in young adults, we used multivariable logistic regression models. Colorectal neoplasm characteristics were evaluated and compared with those in older patients.RESULTS: Among 2819 patients included, prevalences of colorectal adenoma and advanced adenoma were 19.7% and 1.5%, respectively. As patient age increased, so did the prevalence of colorectal neoplasm. However, prevalence of advanced adenoma did not differ between age-groups 45-49 years and ≥ 50 years (OR = 0.43, 95%CI: 0.17-1.07, P = 0.070). In younger age-group (< 50 years), colorectal adenoma was significantly associated with older age, waist circumference (OR = 1.72, 95%CI: 1.15-2.55, P = 0.008), and current smoking (OR = 1.60, 95%CI: 1.07-2.41, P = 0.023). Alcohol consumption was an independent risk factor for colorectal advanced adenoma (OR = 3.69, 95%CI: 1.08-12.54, P = 0.037). Multiple neoplasms and large neoplasms (≥ 1 cm) were more prevalent in subjects ≥ 50 years.CONCLUSION: Current screening strategies for colorectal cancer may need to be amended to account for patient age, especially in young subjects with abdominal obesity, current smoking and alcohol consumption. |
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Keywords: | Colorectal adenoma Advanced adenoma Colorectal cancer Cancer screening Young patients |
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