Table 4.

Concordance correlation coefficients for the echocardiographic measurements, and their class limits

Echocardiographic parameter	CCC	Lower CL	Upper CL
AVA	0.85	0.80	0.88
PVA	0.65	0.57	0.72
VLS	0.92	0.89	0.94
STJ	0.80	0.74	0.84
AA	0.57	0.47	0.66
2D-LVLd	0.72	0.64	0.78
2D-LVLs	0.62	0.53	0.70
2D-LVVd	0.54	0.45	0.63
2D-LVVs	0.47	0.34	0.58
M-LVIDd	0.81	0.76	0.85
M-LVIDs	0.78	0.72	0.82
M-IVSd	0.41	0.31	0.49
M-IVSs	0.52	0.42	0.61
M-LVWd	0.28	0.15	0.40
M-LVWs	0.64	0.56	0.71

CCC = concordance correlation coefficient; CL = class limit

Poor concordance: < 0.50; moderate concordance: ≥ 0.50 and < 0.75; good concordance: ≥ 0.75 and < 0.90; excellent concordance: ≥ 0.90