High Coffee Consumption Linked to Lower Risk of Prostate Cancer Recurrence
Prostate cancer is one of the most common kinds of cancer in men, with some sources estimating that up to 80% of all men have been diagnosed with it by the time they hit the age of 80. A recent study suggests that drinking four or more cups of coffee a day may reduce the risk of prostate cancer recurrence and/or progression by 59%.
Participants in the study included 1,001 prostate cancer survivors between the ages of 35 and 74 at the time of diagnosis between 2002 and 2005. All of the participants filled out food frequency questionnaires to determine their diet and beverage consumption for the two years prior to their diagnosis. The researchers also interviewed them about demographic and lifestyle information, family history of cancer, medication use, and prostate cancer screening history.
Five years after diagnosis, the researchers followed up with each participant to determine whether or not they had experienced a recurrence or progression of prostate cancer. Six hundred thirty of the original participants answered questions regarding coffee intake, fit the follow-up criteria, and ended up in the final analysis.
Of those included, 61% drank at least one cup of coffee per day and 12% drank four or more cups daily.
The researchers found that the men who drank the largest amounts of coffee had a 59% lower risk of recurrence and/or progression but not mortality from the disease. They noted, however, that not enough participants had died from prostate cancer during the course of the study, making it hard to determine a correlation between mortality and coffee consumption.
Researchers from the Fred Hutchinson Cancer Research Center, USA, conducted the study. It was published online ahead of print on August 2, 2013, in Cancer Causes & Control.
Previous studies have shown that coffee has a number of health benefits. These benefits are generally attributed to the powerful antioxidants found in coffee called polyphenols and include reducing the risk of developing diabetes, cirrhosis and oral cavities.