Ana R Acuna-Villaorduna1,2, Juan Lin3, Mimi Kim3, Sanjay Goel1,2. 1. Department of Medical Oncology, Montefiore Medical Center, Bronx, NY, USA. 2. Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA. 3. Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY, USA.
Abstract
INTRODUCTION: Early-onset colorectal cancer (EO-CRC) is a public health concern. Starting screening at 45 years has been considered, but there is discrepancy in the recommendations. Racial disparities in EO-CRC incidence and survival are reported; however, racial/ethnic differences in EO-CRC features that could inform a racial/ethnic-tailored CRC screening strategy have not been reported. We compared features and survival among Non-Hispanic White (NHW), Non-Hispanic Black (NHB), and Hispanics with EO-CRC. METHODS: CRC patients from SEER 1973-2010 database were identified, and EO-CRC was defined as CRC at <50 years. Clinical/pathological features and survival were compared between NHW, NHB, and Hispanics. Cancer-specific survival (CSS) predictors were assessed in a multivariable Cox proportional hazard model. RESULTS: Of 166,416 patients with CRC, 16,545 (9.9%) had EO-CRC. The EO-CRC frequencies in NHB and Hispanics were higher than NHW (12.7% vs. 16.5% vs. 8.7%, p < 0.001). EO-CRC in NHB presents more frequently in females, with well/moderately differentiated, stage IV, and is less likely to present in locations targetable by sigmoidoscopy than NHW (54.6% vs. 67.7% OR:1.7, 95% p < 0.001). 5-year CSS was lower in NHB (59.4% vs. 72.8%, HR: 1.7; 95% CI: 1.54-1.82) and Hispanics (66.4% vs. 72.8%, HR: 1.3; 95% CI: 1.16-1.39) than NHW. A regression model among patients with EO-CRC showed that being NHB or Hispanic were independent predictors for cancer-specific mortality, after adjusting for gender, grade, stage, and surgery. CONCLUSION: EO-CRC is more likely in NHB and Hispanics. Racial disparities in clinical/pathological features and CSS between NHB and NHW/Hispanics were evidenced. A racial/ethnic specific screening strategy could be considered as an alternative for patients younger than 50 years.
INTRODUCTION: Early-onset colorectal cancer (EO-CRC) is a public health concern. Starting screening at 45 years has been considered, but there is discrepancy in the recommendations. Racial disparities in EO-CRC incidence and survival are reported; however, racial/ethnic differences in EO-CRC features that could inform a racial/ethnic-tailored CRC screening strategy have not been reported. We compared features and survival among Non-Hispanic White (NHW), Non-Hispanic Black (NHB), and Hispanics with EO-CRC. METHODS: CRC patients from SEER 1973-2010 database were identified, and EO-CRC was defined as CRC at <50 years. Clinical/pathological features and survival were compared between NHW, NHB, and Hispanics. Cancer-specific survival (CSS) predictors were assessed in a multivariable Cox proportional hazard model. RESULTS: Of 166,416 patients with CRC, 16,545 (9.9%) had EO-CRC. The EO-CRC frequencies in NHB and Hispanics were higher than NHW (12.7% vs. 16.5% vs. 8.7%, p < 0.001). EO-CRC in NHB presents more frequently in females, with well/moderately differentiated, stage IV, and is less likely to present in locations targetable by sigmoidoscopy than NHW (54.6% vs. 67.7% OR:1.7, 95% p < 0.001). 5-year CSS was lower in NHB (59.4% vs. 72.8%, HR: 1.7; 95% CI: 1.54-1.82) and Hispanics (66.4% vs. 72.8%, HR: 1.3; 95% CI: 1.16-1.39) than NHW. A regression model among patients with EO-CRC showed that being NHB or Hispanic were independent predictors for cancer-specific mortality, after adjusting for gender, grade, stage, and surgery. CONCLUSION: EO-CRC is more likely in NHB and Hispanics. Racial disparities in clinical/pathological features and CSS between NHB and NHW/Hispanics were evidenced. A racial/ethnic specific screening strategy could be considered as an alternative for patients younger than 50 years.
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