Other coffee & health research

Analysis of the relationship between asthma and coffee/green tea/soda intake.

J H Wee et al, 2020.
International Journal of Environmental Research and Public Health, published online.
October 20, 2020

ABSTRACT

This study aimed to evaluate the association between asthma and the intake of coffee/green tea/soda. We used Health Examinee data from the Korean Genome and Epidemiology Study (2004-2016). The participants (n = 3146 with asthma; n = 158,902 non-asthma) were asked about the frequency and amount of their coffee/green tea/soda intake. Multiple logistic regression analyses were used to calculate the adjusted odds ratios (aORs) with 95% confidence intervals (CIs) for asthma according to the frequency and amount of coffee/green tea/soda intake. Compared to the group consuming no coffee, the aORs for asthma were 0.82 (95% CI = 0.73-0.93, p = 0.002) in the group consuming coffee 1-2 times/day and 0.87 (95% CI = 0.78-0.97, p = 0.011) in the group consuming coffee in quantities of 1 cup, respectively. However, the frequency and amount of green tea and soda consumption were not significantly associated with asthma after adjusting for coffee consumption (all p > 0.05). These findings were consistent in the female subgroup (1-2 times/day: aOR = 0.76, 95% CI = 0.66-0.87, p < 0.001, and 1 cup each time: aOR = 0.79, 95% CI = 0.70-0.90, p < 0.001) but not in the male subgroup. Drinking 1 cup of coffee each time and 1-2 times per day may have protective effects against asthma in a Korean population. However, the associations between asthma and green tea/soda cannot be clearly established.

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