As noted in the displayed P values, there was a significant difference in the hazard ratios in poor versus normal CRF, whereas the differences in hazard ratios according to HR‐lowering drug and current smoking were of borderline significance.
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Prognostic Performance of Heart Rate Recovery on an Exercise Test in a Primary Prevention Population.
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Intercept and age were highly significant in the regression, and 5 other factors—poor CRF, obesity, current smoking, hypertension, and diabetes mellitus—all showed significant (negative) effects on HR recovery, whereas sex, taking an HR‐lowering drug, and an abnormal exercise ECG did not affect HR recovery significantly.