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Media demonstrate ignorance of correlation vs. causation by reporting the coffee study in Circulation - Association of Coffee Consumption with Total and Cause-Specific Mortality in Three Large Prospective Cohorts. See reports in Telegraph, Tribune, BT news, South Wales Argus!, Harvard's own press release. However, the authors of the paper say "given the observational nature of the study design, we could not directly establish a cause-effect relationship between coffee and mortality". Ming Ding. Ambika Satija. Shilpa N. Bhupathiraju. Yang Hu. Qi Sun. Jiali Han. Esther Lopez-Garcia. Walter Willett. Rob M. van Dam. Frank B. Hu. Circulation.
Source: circ.ahajournals.org
coffee circulation hu mortality ambika causation cause-effect dam