Table 2.

Comparison of visual ejection fraction (VEF) by both blinded emergency physicians and modified Simpson’s method (MSM) by blinded cardiologist.

		Measured EF by cardiologist (MSM)
		Low EF (MSM)		Normal EF (MSM)		Total
		Frequency	Percent	Frequency	Percent	Frequency	Percent
Visual estimate of EF by emergency physician 1	Low EF (VEF)	74	55.6	8	6.0	82	61.7
	Normal EF (VEF)	1	0.8	50	37.6	51	38.3
	Total	75	56.4	58	43.6	133	100.0
Visual estimate of EF by emergency physician 2	Low EF (VEF)	74	55.6	7	5.3	81	60.9
	Normal EF (VEF)	1	0.8	51	38.3	52	39.1
	Total	75	56.4	58	43.6	133	100.0

EF, ejection fraction; MSM, modified Simpson’s method