Coffee drinking is associated with increased longevity

Drinking two to three cups of coffee a day is linked with a longer lifespan and lower risk of cardiovascular disease compared with avoiding coffee, according to research published today in the European Journal of Preventive Cardiology, a journal of the ESC.¹ The findings applied to ground, instant and decaffeinated varieties.

“In this large, observational study, ground, instant and decaffeinated coffee were associated with equivalent reductions in the incidence of cardiovascular disease and death from cardiovascular disease or any cause,” said study author Professor Peter Kistler of the Baker Heart and Diabetes Research Institute, Melbourne, Australia. “The results suggest that mild to moderate intake of ground, instant and decaffeinated coffee should be considered part of a healthy lifestyle.”

There is little information on the impact of different coffee preparations on heart health and survival. This study examined the associations between types of coffee and incident arrhythmias, cardiovascular disease and death using data from the UK Biobank, which recruited adults between 40 and 69 years of age. Cardiovascular disease was comprised of coronary heart disease, congestive heart failure and ischaemic stroke.

The study included 449,563 participants free of arrhythmias or other cardiovascular disease at baseline. The median age was 58 years and 55.3% were women. Participants completed a questionnaire asking how many cups of coffee they drank each day and whether they usually drank instant, ground (such as cappuccino or filtered coffee), or decaffeinated coffee. They were then grouped into six daily intake categories, consisting of none, less than one, one, two to three, four to five, and more than five cups per day. The usual coffee type was instant in 198,062 (44.1%) participants, ground in 82,575 (18.4%), and decaffeinated in 68,416 (15.2%). There were 100,510 (22.4%) non-coffee drinkers who served as the comparator group.

Coffee drinkers were compared to non-drinkers for the incidence of arrhythmias, cardiovascular disease and death, after adjusting for age, sex, ethnicity, obesity, high blood pressure, diabetes, obstructive sleep apnoea, smoking status, and tea and alcohol consumption. Outcome information was obtained from medical records and death records. The median follow up was 12.5 years.

A total of 27,809 (6.2%) participants died during follow up. All types of coffee were linked with a reduction in death from any cause. The greatest risk reduction seen with two to three cups per day, which compared to no coffee drinking was associated with a 14%, 27% and 11% lower likelihood of death for decaffeinated, ground, and instant preparations, respectively.

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