Improved scoring system for the electrocardiographic diagnosis of left ventricular hypertrophy

Table 4 Multivariate logistic regression analysis for left ventricular hypertrophy stratified by sex

	Male (n = 2869)		Female (n = 2617)
Characteristic	Wald Chi-Square	P value	Wald Chi-Square	P value
Q-wave amplitude in V3	14.7	P = 0.0001	5.0	P = 0.025
R-wave amplitude in V6	25.5	P < 0.0001	10.0	P = 0.001
S-wave amplitude in V3	77.0	p < 0.0001	53.6	P < 0.0001
QRS Duration	62.2	P < 0.0001	51.2	P < 0.0001
Discordant R-axis and T-axis (difference ≤ 75 or > 75)	17.8	p < 0.0001	0.63	P = 0.426
Maximum (positive deflection) T-wave amplitude in V6	16.0	P < 0.0001	26.1	P < 0.0001
Maximum P'-wave amplitude in V1	9.4	P = 0.002	4.6	P = 0.031
P-wave peak amplitude in V6	1.0	P = 0.314	3.5	P = 0.061
Weight	0.50	P = 0.477	0.9	P = 0.340
Height	6.8	P = 0.009	21.8	P < 0.0001
Age	1.4	P = 0.245	1.06	P = 0.303