Table 1. ECG Criteria.

	Criteria
Sokolow-Lyon voltage18	SV1 + RV5/V6 ≥3.5 mV and/or RaVL ≥1.1 mV
Sex-specific Cornell voltage19	SV3 + RaVL >2.8 mV [for men] and >2.0 mV [for women]
Romhilt-Estes point score20	Diagnostic ≥5 points and probable ≥4 points
	Criteria	Points
	Voltage Criteria
	- R or S in limb leads ≥ 20mm	3
	- S in V1 or V2 ≥ 30mm	3
	- R in V5 or V6 ≥ 30mm	3
	ST-T Abnormality -ST-T vector opposite to QRS w/o digitalis	3
	-ST-T vector opposite to QRS w/digitalis	1
	Negative terminal P mode in V1 1 mm in depth and 0.04 sec in duration	3
	Left axis deviation	2
	QRS duration ≥0.09 sec	1
	Delayed intrinsicoid deflection in V5 or V6 (>0.05 sec)	1
Perugia score21	Positivity of at least 1 of the following 3 criteria: SV3 + RaVL >2.4 mV [men] or >2.0 mV [women], left ventricular strain, or Romhilt-Estes score of ≥5
Perugia 2 Score38	Positivity of at least 1 of the following 2 criteria: SV3 + RaVL >2.4 mV [men] or >2.0 mV [women], or left ventricular strain
Minnesota code 3.122	RV5/V6 >2.6 mV or RI/II/III/aVF >2 mV or RaVL >1.2 mV
Lewis index23	([RI + SIII] − [RIII + SI] >1.7 mV
Framingham-adjusted Cornell voltage24	men: [RaVL + SV3 + 0.0174*{age − 49} + 0.191*{body mass index (BMI) - 26.5}] ≥2.8 mV; women: [RaVL + SV3 + 0.0387*{age − 50} + 0.212* {BMI − 24.9}] ≥2.0 mV
Cornell voltage product25	([RaVL + SV3] *QRS duration ≥243,600 μVms
Sokolow- Lyon voltage product25	[SV1 + RV5/RV6]*QRS duration ≥371,000 μVms
Gubner and Ungerleider voltage26	RI + SIII ≥2.2 mV