Research Methods Scenario: Writing Hypotheses and Identifying Variables
On July 12, 2017 CNN reported: Greater consumption of coffee could lead to a longer life, according to two new studies published Monday. The findings have resurfaced the centuries-old conversation on coffee's health effects.
The study surveyed more than 520,000 people in 10 European countries, making it the largest study to date on coffee and mortality, and found that drinking more coffee could significantly lower a person's risk of mortality. People who drank two to four cups a day had an 18% lower risk of death compared with people who did not drink coffee, according to the study.
These findings are consistent with previous studies that had looked at majority white populations, said Veronica Wendy Setiawan, associate professor of preventative medicine at USC's Keck School of Medicine, who led the study on nonwhite populations.
"We looked at multiple countries across Europe, where the way the population drinks coffee and prepares coffee is quite different," said Marc Gunter, reader in cancer epidemiology and prevention at Imperial College's School of Public Health in the UK, who co-authored the European study.
"The fact that we saw the same relationships in different countries is kind of the implication that it’s something about coffee rather than its something about the way that coffee is prepared or the way it's drunk," he said.
Emanuel, Daniella, CNN. Drinking more coffee leads to a longer life, two studies say.
Downloaded from http://www.cnn.com/2017/07/10/health/coffee-leads-to-longer-life-studies-reaffirm/index.html, July 13, 2017