(Independent) Depression appears to double the chance of dying in any given year for patients with coronary artery disease, according to a new study.
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Dr. Heidi May, a cardiovascular epidemiologist at Intermountain Medical Centre Heart Institute in Salt Lake City, said: No matter how long or how short it was, patients were found to have twice the risk of dying compared to those who didn’t have a follow-up diagnosis of depression.
Depression was the strongest risk factor for dying, compared to any other risk factors we evaluated. That included age, heart failure, diabetes, high blood pressure, kidney failure, or having a heart attack or stroke.
We’ve completed several depression-related studies and been looking at this connection for many years.
The data just keeps building on itself, showing that if you have heart disease and depression and it’s not appropriately treated in a timely fashion, it’s not a good thing for your long-term wellbeing.”
Of more than 2,600 patients who became clinically depressed about 27 per cent did so within a year of being diagnosed with the disease. The figure was 37 per cent after five years.
And while depression seems to make the condition worse, being diagnosed is also a reason why some patients become depressed.
The reason why the chance of dying increased was not revealed by the study, but Dr. May said it was possible patients were not following their treatment plans as closely as people in good mental health. She said,
We know people with depression tend to be less compliant with medication on average and probably in general aren’t following healthier diets or exercise regimens.
They tend to do a poorer job of doing things that are prescribed than people without depression. That certainly doesn’t mean you’re depressed so you’re going to be less compliant, but in general, they tend to follow those behaviours.”
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Dr. May urged the medical community to take depression seriously when treating coronary artery disease.
Patients who have depression need to be treated to improve not only their long-term risks but their quality of life.”