Independent prognostic value of left atrial function by two-dimensional speckle tracking imaging in patients with non -ST-segment-elevation acute myocardial infarction

Table 6 Receiver operating characteristics analysis of echocardiographic parameters to predict cardiovascular events

Variables	Cut off Value	ROC Area	Univariate	Se %	Sp %
Variables	Cut off Value	(95 % CI)	P Value	Se %	Sp %
LAPEF (%)	31.69	0.52(0.36–0.69)	0.781	52.4	46.7
LA total EF (%)	61.54	0.41(0.25–0.57)	0.267	46.7	43.3
E/E’ ratio	5.94	0.46(0.29–0.63)	0.605	47.6	46.7
Baseline mean GLSRs (s⁻¹)	1.68	0.78(0.64–0.91)	0.001**	76.4	67.7
Baseline mean GLSRe (s⁻¹)	−1.24	0.82(0.70–0.94)	0.001**	85.7	76.7

ROC Receiver operator characteristic, Se sensitivity, Sp specificity, LAPEF left atrial passive ejection fraction, LA total EF left atrial total ejection fraction, GLSRs global longitudinal left atrial peak positive strain rate during ventricle systole, GLSRe global longitudinal left atrial peak negative strain rate during early ventricular diastole
*P < 0.05, **P < 0.01

ISSN: 1471-2261