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Prevalence and features of colorectal lesions among Hispanics: A hospital-based study
Hassan Ashktorab1, Adeyinka O Laiyemo1, Edward Lee1
1Hassan Ashktorab, Adeyinka O Laiyemo, Edward Lee, Marcia Cruz-Correa, Amita Ghuman, Mehdi Nouraie, Hassan Brim, Gastroenterology Division and Cancer Center, Pathology Department, Howard University College of Medicine, Washington, DC 20059, United States.
Aim:
To evaluate the prevalence and characteristics of colorectal adenoma and carcinoma in an inner city Hispanic population.
Methods:
We reviewed the reports of 1628 Hispanic patients who underwent colonoscopy at Howard University from 2000 to 2010. Advanced adenoma was defined as adenoma ≥ 1 cm in size, adenomas with villous histology, high grade dysplasia and/or invasive cancer. Statistical analysis was performed using χ(2) statistics and t-test.
Results:
The median age of the patients was 54 years, 64.2% were females. Polyps were observed in 489 (30.0%) of patients. Adenoma prevalence was 16.8% (n = 273), advanced adenoma 2.4% (n = 39), and colorectal cancer 0.4% (n = 7). Hyperplastic polyps were seen in 6.6% of the cohort (n = 107). Adenomas predominantly exhibited a proximal colonic distribution (53.7%, n = 144); while hyperplastic polyps were mostly located in the distal colon (70%, n = 75). Among 11.7% (n = 191) patients who underwent screening colonoscopy, the prevalence of colorectal lesions was 21.4% adenoma, 2.6% advanced adenoma; and 8.3% hyperplastic polyps.
Conclusion:
Our data showed low colorectal cancer prevalence among Hispanics in the Washington DC area. However, the pre-neoplastic pattern of colonic lesions in Hispanics likely points toward a shift in this population that needs to be monitored closely through large epidemiological studies.
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