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LAM of “HFmrEF vs. HFpEF” (A) and “HFmrEF vs. HFrEF” (B). Random effects hazard ratio (HR) and 95% confidence interval (CI) for LAM in 15 studies. CI: Confidence interval; HFmrEF: Heart failure with mid-range ejection fraction; HFpEF: Heart failure with preserved ejection fraction; HFrEF: Heart failure with reduced ejection fraction; LAM: Long-term all-cause mortality.
