Table 2

Adjusted Cox proportional hazard analysis for mortality and incident heart failure events in subjects with ECG left ventricular hypertrophy in three QRS duration subgroups

	No of deaths/incident HFs (%)	Age and gender adjusted			Multivariable* adjusted
	No of deaths/incident HFs (%)	HR	95% CI	P value	HR	95% CI	P value
Cardiovascular Mortality
QRS duration
<100 ms	135 (14.5%)	1			1
100–109 ms	56 (18.5%)	1.39	1.00 to 1.92	0.048	1.38	1.01 to 1.88	0.045
≥110 ms	22 (22.0%)	1.91	1.20 to 3.04	0.007	1.74	1.07 to 2.82	0.025
All-cause mortality
QRS duration
<100 ms	257 (27.5%)	1			1
100–109 ms	86 (28.4%)	1.17	0.91 to 1.51	0.222	1.22	0.96 to 1.55	0.112
≥110 ms	32 (32.0%)	1.54	1.05 to 2.24	0.026	1.52	1.02 to 2.25	0.039
New-onset HF
QRS duration
<100 ms	87 (9.3%)	1			1
100–109 ms	38 (12.5%)	1.83	1.09 to 3.06	0.023	2.18	1.32 to 3.61	0.003
≥110 ms	23 (23.0%)	4.36	2.11 to 9.02	<0.001	3.39	1.60 to 7.17	0.001

*Adjusted for age, sex, coronary heart disease, myocardial infarction, heart failure, hypertension, ST-depression in lead V5, diabetes mellitus, smoking, body mass index and low-density lipoprotein cholesterol.
HF, heart failure.