Table 2.

Intraclass correlation (ICC) and Spearman correlation in 30 patients showing R wave amplitude and ECG parameters and axis deviation in 50 patients

	ICC intraclass correlation	Pearson	Spearman
ECG parameters (n=30 patients)
PR interval	0.965		0.967
QRS duration	0.977		0.953
QRS axis	0.996		0.996
R wave amplitude lead 1	0.984		0.982
QTc	0.943		0.899
Axis deviation (n=50 consecutive patients)	0.992	0.993	0.990