Table 4. Characteristics of Left Ventricular Enlargement, Systolic Dysfunction or Both (DCM).

All data are shown as n; mean ± SD (range)	Mutation Positive	Mutation Negative
Ages of diagnosis of LVE, systolic dysfunction, or both, all subjects	26; 47.6 ± 12.4 (28-82)	0
Those diagnosed without ECG abnormality	3; 39.3 ± 8.1 (31-45)	0
Those with prior known ECG abnormality	16; 51.4 ± 12.5 (35-82)	0
Systolic dysfunction (EF ≤ 50%) without LVE	9; 47.9 ± 16.4 (31-82)	0
LVE without systolic dysfunction	5; 43.4 ± 7.4 (35-51)	0
DCM*	11; 48.7 ± 11.7 (28-64)	0
Characteristics of DCM at diagnosis
LVEF at diagnosis	22; 39.1 ± 11.5 (16-50)	0
LVE by z-score	19; 3.4 ± 1.1, (1.78-5.85)	0
Ages of subjects receiving a heart transplant	8; 56.0 ± 6.3 (48-65)	0

^*One subject was diagnosed with DCM at autopsy and did not have LV size or systolic function available for analysis prior to death