Table 5. Echocardiogram characteristics, by cardiac marker status (n = 81).^a .

Echocardiographic characteristics	Positive troponin(TnT ≥0.03)	Negative troponin(TnT <0.03)	P**
Left ventricular ejection fraction (%)	57.5 (40–71)	56 (48–67)	0.87
Left atrial size (mm)	35.0 (31.5–40.5)	34.5 (29.0–39.0)	0.87
Left ventricular mass (grams)b	147.8 (113.6–186.6)	142.9 (100.6–205.5)	0.89
Right ventricular systolic pressure	44.5 (38–58)	42 (39–51)	0.55
Mitral regurgitation gradec	1 (1–2)	1 (0–2)	0.24
Tricuspid regurgitation gradec	2 (1.75–2.75)	2 (1–2)	0.04
Regional wall motion abnormalities	13 (37%)	3 (7%)	0.001
Right ventricular dilation	9 (25%)	10 (23%)	0.86
Right ventricular hypokinesis	9 (26%)	9 (21%)	0.62

^aFor patients with a recorded echocardiogram within 48 hours of biomarker draw date. Continuous variables are presented as median (interquartile range), categorical variables as number of patients and (% of patients with available data).

^bFor continuous variables, value represents P value for rank sum test for difference in distributions, for categorical variables, value represents P value for Chi2 statistic.

^cValvular regurgitation variables defined as follows: 0 = none, 1 = trace, 2 = mild, 3 = moderate, 4 = severe.