TABLE 6. Results of the Post-Hoc Analysis of the Dunn Test for Each Lead.

Lead X
Dunn test (p-value)	Tr. method	Kors	Dower	Quasi	QLSV
	Kors	*	< 0,001	< 0,001	0,905
	Dower	*	*	0,828	0,020
	Quasi	*	*	*	0,003
	QLSV	*	*	*	*
Post hoc analysis	Mean value ( )	Letter scheme
	0,0007	Kors	A	*	*	*
	0,0019	QLSV	A	B	*	*
	0,0035	Kvazi	*	*	C	*
	0,0059	Dower	*	*	C	D
Lead Y
Dunn test (p-value)	Tr. method	Kors	Dower	Quasi	QLSV
	Kors	*	0,210	< 0,001	< 0,001
	Dower	*	*	0,136	0,267
	Quasi	*	*	*	0,999
	QLSV	*	*	*	*
Post hoc analysis	Mean value ( )	Letter scheme
	0,0013	Kors	A	*	*	*
	0,0023	QLSV	A	B	*	*
	0,0023	Kvazi	*	B	C	*
	0,0036	Dower	*	B	C	D
Lead Z
Dunn test (p-value)	Tr. method	Kors	Dower	Quasi	QLSV
	Kors	*	0,002	0,990	0,740
	Dower	*	*	0,014	< 0,001
	Quasi	*	*	*	0,319
	QLSV	*	*	*	*
Post hoc analysis	Mean value ( )	Letter scheme
	0,0054	Kors	A	*	*	*
	0,0086	QLSV	A	B	*	*
	0,0105	Quasi	A	B	C	*
	0,0242	Dower	*	*	*	D