Kelder Rule to Determine Risk of Heart Failure with Reduced Ejection Fraction in the Primary Care Setting
<-- Age (years)
<-- N-terminal prohormone BNP (pg per mL)
<-- Myocardial infarction, coronary artery bypass grafting, or percutaneous coronary intervention
<-- Loop diuretic
<-- Displaced apex beat
<-- Rales basal or more
<-- Irregularly irregular pulse
<-- Heart murmur suggestive of mitral regurgitation
<-- Pulse rate (Beats per minute)
<-- Elevated jugular venous pressure
Score --> numberscore1=(variable_1)+(variable_2)+(variable_3)+(variable_4)+(variable_5)+(variable_6)+(variable_7)+(variable_8)+(variable_9)+(variable_10)
Interpretation (external validation panel's probability of heart failure in patients with new symptoms suggestive of heart failure) --> resultscore2=(variable_1)+(variable_2)+(variable_3)+(variable_4)+(variable_5)+(variable_6)+(variable_7)+(variable_8)+(variable_9)+(variable_10);score2>54?'87.5 percent':score2>23?'38.3 percent':score2>12?'15.9 percent':'4.7 percent'
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