Table 1.

Characterisation of IDC patients and healthy subjects (Control)

	IDC	Control
Number	12	13
Age (years)	52.5 ± 11.7	50.4 ± 10.3
Sex (m/f)	8/4	9/4
NYHA (I–IV)	2.6 ± 0.8	—
LVEF (%)	26.4 ± 12.3	—
LVEDD (mm)	70.1 ± 6.2	—
QRS (ms)	144.0 ± 23.4	90.7 ± 12.5

All parameters are means ±s.d. Abbreviations: NYHA (I–IV), New York Heart Association functional class (range I–IV); LVEF, left ventricular ejection fraction; LVEDD, left ventricular end-diastolic diameter; QRS, mean duration of the QRS complex.