Coffee and tea consumption and endometrial cancer risk in a population-based study in New Jersey

Cancer Causes Control. 2010 Sep;21(9):1467-73. doi: 10.1007/s10552-010-9575-9. Epub 2010 May 14.


We evaluated the role of tea and coffee and substances added (sugar/honey, creamers, and milk) on endometrial cancer risk in a population-based case-control study in six counties in New Jersey, including 417 cases and 395 controls. Multivariate odds ratios (OR) and 95% confidence intervals (CI) were computed using unconditional logistic regression. There was a moderate inverse association with coffee consumption, with an adjusted OR of 0.65 (95% CI: 0.36-1.17) for women who reported more than two cups/day of coffee compared to none. Tea consumption appeared to increase risk (OR: 1.93; 95% CI: 1.08-3.45), but after including the variables sugar/honey and cream/milk added to tea in the model, the risk estimate was attenuated and no longer statistically significant (OR: 1.77; 95% CI: 0.96-3.28 for those consuming more than one cup/day of tea compared to nonusers). There was a suggestion of a decreased risk associated with green tea, but the confidence interval included one (adjusted OR for one or more cups/week vs. none: 0.75; 95% CI: 0.48-1.18). We found an association with adding sugar/honey to tea, with those adding two or more teaspoons/cup having an OR of 2.66 (95% CI: 1.42-4.98; p for trend <0.01) after adjusting for relevant confounders. For sugar/honey added to coffee the corresponding OR was 1.43 (95% CI: 0.81-2.55). Our results indicate that sugars and milk/cream added to coffee and tea should be considered in future studies evaluating coffee and tea and endometrial cancer risk.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Case-Control Studies
  • Coffee / adverse effects*
  • Dairy Products / adverse effects
  • Endometrial Neoplasms / epidemiology*
  • Feeding Behavior*
  • Female
  • Humans
  • New Jersey
  • Odds Ratio
  • Risk Factors
  • Sweetening Agents / adverse effects
  • Tea / adverse effects*


  • Coffee
  • Sweetening Agents
  • Tea