Table 4.

Diagnostic Test Characteristics for Detecting Left Ventricular Dysfunction Using Systolic Time Intervals and B‐Type Natriuretic Peptide Levels

	Sensitivity	Specificity	+ LR	− LR	Accuracy
EMAT ≥ 15	44 (22–69)	94 (85–98)	7.0	0.59	0.83
EMAT/LVST ≥ 0.40	56 (31–78)	95 (87–99)	11.7	0.47	0.86
BNP ≥ 100 pg/mL	100 (80–100)	57 (44–70)	2.3	0	0.66
BNP ≥ 250 pg/mL	94 (71–100)	79 (67–89)	4.6	0.07	0.83
BNP ≥ 500 pg/mL	59 (33–82)	94 (85–98)	9.3	0.44	0.86

EMAT = electromechanical activation time; LVST = left ventricular ejection time; BNP = B‐type natriuretic peptide.