Digestive Diseases and Sciences

, Volume 59, Issue 12, pp 2874–2889 | Cite as

Risk Factors for Serrated Polyps of the Colorectum

  • Tanvir R. Haque
  • Patrick T. Bradshaw
  • Seth D. Crockett


Serrated pathway polyps are a relatively new area of interest in the field of colorectal cancer screening and prevention. Akin to conventional adenomas, some serrated polyps (SPs) have the potential to develop into malignant serrated neoplasms, yet little is known regarding risk factors for these lesions. Early epidemiological studies of hyperplastic polyps were performed without knowledge of the serrated pathway and likely included a mixture of SPs. More recently, studies have specifically evaluated premalignant SPs, such as the sessile serrated adenoma (SSA) or surrogates for these polyps such as large or proximally located SPs. SPs share some risk factors with conventional adenomas and have been associated with tobacco use, obesity, and age. Nonsteroidal anti-inflammatory drug (NSAID) use, fiber, folic acid, and calcium have been associated with reduced risk of SPs. Studies focused on SSAs specifically have reported associations with age, female sex, smoking, obesity, diabetes, and possibly diets high in fat, carbohydrates, and calories. Higher education has also been associated with risk of SSAs, while an inverse association between NSAID use and SSAs has been reported. Risk factors for traditional serrated adenomas are largely unknown. Studies are largely limited by varying inclusion criteria, as well as differences in pathological classification schemes. Further epidemiological studies of SPs are needed to aid in risk stratification and screening, and etiological research.


Colonic neoplasms (MeSH) Colonic polyps (MeSH) Epidemiology (MeSH) Sessile serrated adenoma Hyperplastic polyp Traditional serrated adenoma 



This work was supported, in part, by a grant from the American College of Gastroenterology, ACG-JR-000-2012 (SDC), and a grant from the National Institutes of Health, K12-CA120780 (PTB).

Conflict of interest


Supplementary material

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Supplementary material 1 (PDF 125 kb)
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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Tanvir R. Haque
    • 1
  • Patrick T. Bradshaw
    • 2
  • Seth D. Crockett
    • 1
  1. 1.Division of Gastroenterology and HepatologyUniversity of North Carolina School of MedicineChapel HillUSA
  2. 2.Department of Epidemiology, Gillings School of Global Public HealthUniversity of North CarolinaChapel HillUSA

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