Table 2.
Echocardiographic Characteristics of 794 Children With Dilated Cardiomyopathy at Diagnosis and by Outcome at 12 Months
| Characteristic at diagnosis | Died (N=40) | Cardiac transplanted (N=117) | Event‐free survival (N=585) | Lost to follow‐up (N=52) | P value* |
|---|---|---|---|---|---|
| Left ventricular fractional shortening Z score | |||||
| Mean (SD) | −9.39 (2.99) | −9.73 (2.62) | −7.84 (3.86) | −8.50 (4.94) | <0.001 |
| Median (IQR) | −10.02 (−11.62 to −7.10) | −9.87 (−11.77 to −8.02) | −8.65 (−10.58 to −5.15) | −9.41 (−11.70 to −6.96) | |
| LVEDD Z score | <0.001 | ||||
| Mean (SD) | 5.68 (2.01) | 5.82 (2.00) | 4.09 (2.70) | 4.88 (2.32) | |
| Median (IQR) | 5.61 (4.47 to 6.83) | 5.74 (4.23 to 7.33) | 3.97 (2.15 to 5.94) | 5.00 (3.14 to 6.59) | |
| LVPWT Z score | 0.07 | ||||
| Mean (SD) | 0.28 (1.47) | −0.98 (1.93) | −0.70 (2.33) | −0.12 (1.82) | |
| Median (IQR) | 0.02 (−0.82 to 1.16) | −1.11 (−1.79 to 0.22) | −0.78 (−2.11 to 0.63) | −0.41 (−1.51 to 0.71) | |
| LVPWT:LVEDD ratio Z score | <0.001 | ||||
| Mean (SD) | −1.83 (1.84) | −2.67 (1.27) | −1.41 (2.17) | −1.47 (1.83) | |
| Median (IQR) | −1.99 (−3.37 to −0.84) | −2.80 (−3.38 to −2.17) | −1.71 (−2.71 to −0.41) | −1.74 (−2.86 to −0.45) | |
IQR indicates interquartile range; LVEDD, left ventricular end‐diastolic dimension; and LVPWT, left ventricular end‐diastolic posterior wall thickness.