Cancer Causes & Control

, Volume 20, Issue 8, pp 1317–1325

Intake of folate, vitamins B6, B12 and methionine and risk of pancreatic cancer in a large population-based case–control study

  • Zhihong Gong
  • Elizabeth A. Holly
  • Paige M. Bracci
Original paper

DOI: 10.1007/s10552-009-9352-9

Cite this article as:
Gong, Z., Holly, E.A. & Bracci, P.M. Cancer Causes Control (2009) 20: 1317. doi:10.1007/s10552-009-9352-9

Abstract

Objective

Folate and other methyl-group nutrients may play a key role in pancreatic carcinogenesis through their effects on DNA integrity. We examined the association between pancreatic cancer and intake of folate, vitamins B6, B12 and methionine in a large population-based case–control study.

Methods

Risk factor data were collected during in-person interviews with 532 pancreatic cancer cases diagnosed in 1995–1999 and 1,701 frequency-matched controls in the San Francisco Bay Area. Dietary history and supplement use were obtained using a semi-quantitative food-frequency questionnaire developed at Harvard University. Adjusted unconditional logistic regression was used to compute odds ratios (OR) and 95% confidence intervals (CI) as estimates of the relative risk.

Results

Total folate intake was inversely associated with pancreatic cancer (5th vs. 1st quintile: OR = 0.67, 95% CI = 0.48–0.93, ptrend = 0.04). Increased vitamin B12 from food was positively associated with pancreatic cancer although risk estimates for quintiles 3–5 were similar (5th vs. 1st quintile: OR = 1.9, 95% CI = 1.3–2.6, ptrend = 0.001). Intake of vitamin B6 or methionine was not associated with pancreatic cancer risk.

Conclusions

Our study provided some support for an inverse association between folate intake and pancreatic cancer risk. The increased pancreatic cancer risk with vitamin B12 intake from food warrants further investigation.

Keywords

Pancreatic neoplasms Diet Micronutrients Folic acid Case–control studies 

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Zhihong Gong
    • 1
  • Elizabeth A. Holly
    • 1
    • 2
  • Paige M. Bracci
    • 1
  1. 1.Division of Cancer Epidemiology, Department of Epidemiology and Biostatistics, School of MedicineUniversity of California San FranciscoSan FranciscoUSA
  2. 2.Department of Health Research and Policy, School of MedicineStanford UniversityStanfordUSA

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