Good COP, bad COP? Is this cardiorespiratory measure the best predictor of early death?
. These studies all appeared within the last 7 months.
The mortality study, which Araújo co-authored, compared COP in more than 3000 US men and women who completed an exercise test from 1973-2018 and were tracked for an average of 23 years. Although COP was introduced as an assessment in 2012, calculating the value from tests prior to that date was possible because those tests had captured the relevant breathing rate and oxygen uptake. In males aged 18-85 years, a worse COP was significantly associated with an increased risk for earlier death.
In the heart failure study, everyone enrolled had heart failure and completed a COP test. People with the worse COPs also had the worst symptoms of heart failure, but completing an exercise rehabilitation program improved COP values when researchers measured them again. Araújo was also part of this study, based in the Netherlands.
Marcus A. Banks, MA, is a journalist based in New York City who covers health news with a focus on new cancer research. His work appears in Medscape, Cancer Today, The Scientist, Gastroenterology & Endoscopy News, Slate, TCTMD, and Spectrum.
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