Psychiatric disorders and cardiac anxiety in exercising and sedentary coronary artery disease patients: a case-control study. A. Sardinha, C.G.S. Araújo and A.E. Nardi. Braz J Med Biol Res 2012; 45: 1320-1326
Figure 1. Scores of the Cardiac Anxiety Questionnaire, which was returned by 99 of the 119 patients studied (83%; 49 exercisers and 50 sedentary subjects). The mean scores of exercisers were significantly lower than those of sedentary subjects (P < 0.001, 95%CI = 13.47 to 23.55, t-test).