Consuming four or more cups of coffee a day could reduce the risk of prostate cancer recurrence and disease progression, according to a study published in the journal Cancer Causes and Control.
Researchers from the Fred Hutchinson Cancer Research Center in Seattle analyzed 1,001 prostate cancer survivors from a population-based study, aged between 35 and 74 years of age. All survivors had been diagnosed with the disease between 2002 and 2005.
The participants were asked to complete a food frequency questionnaire two years before their prostate cancer diagnosis, and were required to give information regarding their diet and beverage consumption.
The participants were also interviewed about their:
- Demographic and lifestyle information
- Family history of cancer
- Medication use
- Prostate cancer screening history.
The researchers ran a follow-up analysis five years after the participants' first diagnosis to find out whether the prostate cancer had recurred and/or progressed. Of the original 1,001 participants, 630 then answered questions about their coffee intake and were included in the final results.
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