Left ventricular longitudinal wall fractional shortening accurately predicts longitudinal strain in critically ill patients with septic shock

Annals of Intensive Care

Table 3 Linear regression (including 95% CI), Pearson’s product moment correlation coefficient, MSPE, bias ± LOA, and ICC for measured vs predicted LVLS

	MSPE	Bias (LOA)	ICC (95% CI)
y = 0.997x + 0.007	5.8	− 0.044 (± 4.7%)	0.94 (0.90–0.96)
y = 0.921x + 2.691	5.8	1.649 (± 4.8%)	0.94 (0.90–0.96)

CI confidence interval, MSPE mean square prediction error, LOA limits of agreement, ICC intraclass correlation coefficient, LVLS left ventricle longitudinal strain, LV-LWFS left ventricle-longitudinal wall fractional shortening, LVLSmeas measured LVLS, LVLSpred1 predicted LVLS from LV-LWFS using the regression equation from our cohort, LVLSpred2 predicted LVLS from LV-LWFS using the regression equation from Huang et al. [14]