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Caffeine from Coffee Inversely Linked with Rosacea

JAMA Dermatol; ePub 2018 Oct 17; Li, Chen, et al

Increased caffeine intake from coffee was inversely associated with the risk of incident rosacea, according to a recent study. This cohort study included 82,737 women in the Nurses’ Health Study II (NHS II) with follow-up conducted biennially between 1991 and 2005. All analysis took place between June 2017 and June 2018. Data on coffee, tea, soda, and chocolate consumption were collected every 4 years during follow-up. Researchers found:

  • During 1,120,051 person-years of follow-up, 4,945 incident cases of rosacea were identified.
  • After adjustment for other risk factors, an inverse association was found between increased caffeine intake and risk of rosacea (hazard ratio [HR] for the highest quintile of caffeine intake vs the lowest, 0.76).
  • A significant inverse association with risk of rosacea was also observed for caffeinated coffee consumption (HR, 0.77 for those who consumed ≥4 servings/day vs those who consumed <1/month), but not for decaffeinated coffee (HR, 0.80).
  • Further analyses found that increased caffeine intake from foods other than coffee (tea, soda, and chocolate) was not significantly associated with decreased risk of rosacea.
Citation:

Li S, Chen ML, Drucker AM, et al. Association of caffeine intake and caffeinated coffee consumption with risk of incident rosacea in women. [Published online ahead of print October 17, 2018]. JAMA Dermatol. doi:10.1001/jamadermatol.2018.3301.

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