Caffeine intake not a risk factor for dry eye disease, study finds
Norway: In the general population, dietary caffeine intake does not appear to be a risk factor for dry eye disease (DED), says an article published in the journal Cornea on 26th January 2022.
Morten Schjerven Magno and colleagues conducted this investigation in the large, population-based Life Lines cohort in the Netherlands to see if there was a link between coffee use and dry eye disease.
For this study, The Women's Health Study dry eye questionnaire was used to measure DED in 85,302 individuals (59% of whom were female). Caffeine consumption from coffee, tea, cola, and energy drinks was used to determine dietary caffeine. The association between DED and caffeine was investigated using logistic regression, which took into account demographic characteristics, smoking status, alcohol intake, and 48 DED comorbidities.
The results of this study stated as follow:
1. The participants' average age was 50.7 years, with 50,339 (59%) of them being female.
2. Caffeine consumption was 285 (182) mg/d on average (SD). After accounting for demographics, BMI, smoking status, and alcohol consumption, increased caffeine consumption was linked to a lower risk of DED as defined by the Women's Health Study [odds ratio (OR) 0.971 per 100 mg/d].
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