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Beta-blockers vs. placebo in sinus rhythm according to heart failure phenotype. Kaplan Meier plots for unadjusted (A) all-cause mortality and (B) cardiovascular mortality according to baseline left ventricular ejection fraction (LVEF). * Similar results in post hoc analysis when excluding patients with an LVEF reported as exactly 40% from the 40–49% group: (A) log-rank P = 0.030 and (B) log-rank P = 0.039; n = 147 placebo, and n = 143 beta-blockers.
