NPPB and coronary artery disorder: Multivariate analysis including NT‐proBNP, LVEF as a continuous variable, haemoglobin levels, presence of coronary artery disease and age revealed that LOY ≥17 is an independent predictor of mortality independent of ejection fraction (HR 1.52, 95% CI 1–2.31; p = 0.05) (online supplementary Figure S3B).