Table 1 Characteristics of the study population.

n

100

33

males, n (%)

64 (64.0%)

23 (69.7%)

age, years

52.5 ± 16.9

69.7 ± 9.1

QRS, ms

82.4 ± 4.2

149.7 ± 15.5

LVEF, %

59.7 ± 2.1

34.6 ± 12.3

heart rate, min^-1

72.0 ± 10.8

69.3 ± 11.3

cardiomyopathy

   ischemic, n (%)

-

17 (51.5%)

   dilated, n (%)

-

10 (30.3%)

   hypertensive, n (%)

-

2 (6.1%)

   valvular, n (%)

-

1 (3.0%)