Cancer Causes & Control

, 17:1245 | Cite as

Serum triglycerides and colorectal adenoma in a case–control study among cancer screening examinees (Japan)

  • Tetsuya Otani
  • Motoki Iwasaki
  • Shinobu Ikeda
  • Takahiro Kozu
  • Hiroshi Saito
  • Michihiro Mutoh
  • Keiji Wakabayashi
  • Shoichiro Tsugane
Original Paper



Most epidemiologic studies have shown serum triglycerides to be associated with colorectal adenoma. However, whether the association can be modified by smoking is unknown. We cross-sectionally investigated the association of serum triglycerides with the risk of adenoma by smoking status.


We identified 782 newly diagnosed adenoma cases from the examinees of a colorectal cancer screening program. All cases were diagnosed by a magnifying colonoscopy with dye spreading. We determined 738 controls without present illness or past history of adenoma from among the examinees. They provided their lifestyle information and fasting blood samples to measure their serum triglycerides. We calculated odds ratios (OR) and 95% confidence intervals (CI) of colorectal adenoma for serum triglycerides.


High serum triglycerides were associated with colorectal adenoma (OR 1.5; 95% CI 1.1–2.0 for the highest versus the lowest quartile, P trend, 0.030). A stronger association was observed between three or more adenoma cases and study controls (OR 2.3; 95% CI 1.3–4.2, P trend, < 0.0010). After classifying the study subjects by smoking status, a significant linear risk trend was found in ever-smokers (P trend, 0.0018) but not in never-smokers (P trend, 0.94; P interaction, 0.067).


Our results suggested that a higher serum triglyceride level may be related to a larger number of adenomas. Adenoma development involving an elevated serum triglyceride level may be modified by smoking.


Serum triglycerides Smoking Colorectal adenoma Case–control study 



We thank Dr. Yasushi Sano, Division of Digestive Endoscopy and Gastrointestinal Oncology, National Cancer Center Hospital East, for his helpful comments. This study was supported by a Grant-in-Aid for Cancer Research and for the Third-Term Comprehensive 10-year Strategy for Cancer Control from the Ministry of Health, Labor and Welfare of Japan, by a Grant-in-Aid for Scientific Research on Priority Areas from the Ministry of Education, Culture, Sports, Science and Technology, Japan, and by the program for promotion of Fundamental Studies in Health Sciences of the Pharmaceuticals and Medical Devices Agency (PMDA).


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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • Tetsuya Otani
    • 1
  • Motoki Iwasaki
    • 1
  • Shinobu Ikeda
    • 1
  • Takahiro Kozu
    • 2
  • Hiroshi Saito
    • 3
  • Michihiro Mutoh
    • 4
  • Keiji Wakabayashi
    • 4
  • Shoichiro Tsugane
    • 1
  1. 1.Epidemiology and Prevention Division, Research Center for Cancer Prevention and ScreeningNational Cancer CenterTokyoJapan
  2. 2.Cancer Screening Division, Research Center for Cancer Prevention and ScreeningNational Cancer CenterTokyoJapan
  3. 3.Cancer Screening Technology Division, Research Center for Cancer Prevention and ScreeningNational Cancer CenterTokyoJapan
  4. 4.Cancer Prevention Basic Research ProjectNational Cancer Center InstituteTokyoJapan

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