Table 1.
Overview of Patient Demographics and Cardiovascular Function Clinical Parameters for Study Participants
| Demographics and clinical parameters | Training set, n=36 | Held‐out test set, n=9 | P value |
|---|---|---|---|
| Sex, n (%) | 1.00* | ||
| Men | 22 (61) | 6 (67) | |
| Women | 14 (39) | 3 (33) | |
| Height, cm, mean (SD) | 151.3 (26.6) | 163.1 (16.0) | 0.21† |
| Weight, kg, mean (SD) | 56.3 (26.0) | 59.2 (19.7) | 0.76† |
| Body surface area, m2, mean (SD) | 1.52 (0.48) | 1.63 (0.34) | 0.52† |
| Age, y, mean (SD) | 15.0 (7.9) | 14.7 (2.6) | 0.90† |
| Stroke volume,‡ mL, mean (SD) | 68.8 (32.34) | 78.19 (24.81) | 0.42† |
| Cardiac output,‡ L/min, mean (SD) | 4.94 (1.88) | 5.01 (0.84) | 0.92† |
| Ejection fraction,‡ %, mean (SD) | 0.57 (0.08) | 0.59 (0.12) | 0.51† |
| Reference heart rate, bpm, mean (SD) | 76.1 (14.2) | 67.7 (14.8) | 0.12† |
| Single ventricle, n (%) | 5 (14) | 3 (33) | 0.33* |
| Systemic ventricle, n (%) | 0.65* | ||
| Right ventricle | 6 (17) | 2 (22) | |
| Left ventricle | 30 (83) | 7 (78) |
*
Statistical significance between training and testing sets in categorical variables, where applicable, was computed using Fisher exact test.
†
Statistical significance between training and testing sets in values, where applicable, was computed using an unpaired t test.
‡
Values for systemic ventricle data are shown.