That association didn't change for patients who were previously diagnosed with depression before their heart disease diagnosis or for patients whose angiograms were performed for various reasons, which
included stable angina, unstable angina, or heart attack.
The study
included 22,917 patients from 19 medical centers in Ontario, Canada, who received a diagnosis of
stable coronary artery disease following coronary angiogram for chest pain (chronic
stable angina) between Oct. 1, 2008, and Sept. 30, 2013.