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Figure 2 Distribution of treatment effect of physiologic pacing by subgroup. The hazard ratios (solid circle) and the 95% confidence intervals are plotted for the treatment effect of physiologic pacing. Associated p values are shown. See text for details. Afib = atrial fibrillation; Hypten = hypertension; LVF = left ventricular function; MICAD = myocardial infarction or coronary artery disease; SA = sinoatrial.