Table 1:
Characteristics of the study population
| Tetralogy of Fallot (n=78) | TGA (n=20) |
Fontan (n=74) |
p | |
|---|---|---|---|---|
| Age (years) | 12.6±3.4 | 12.5±2.6 | 12.5±2.8 | 0.97 |
| Male sex % (n) | 64% (50) | 60% (12) | 54% (40) | 0.45 |
| Race % (n) | ||||
| White | 88% (69) | 85% (17) | 76% (56) | 0.32 |
| Black or African-American | 5% (4) | 5% (1) | 12% (9) | |
| Other or chose not to answer | 6% (5) | 10% (2) | 12% (9) | |
| Height (cm) | 148±18 | 151±17 | 149±16 | 0.78 |
| Weight (kg) | 45.0±16.5 | 43.0±15.1 | 43.1±14.7 | 0.73 |
| Body mass index | 18.9 (IQR:16.3–22.5) | 17.2 (IQR: 15.9–19.4) | 18.2 (IQR: 16.1–20.2) | 0.31 |
| Body composition | ||||
| Obese (BMI>95%) | 12% (9) | 5% (1) | 11% (8) | 0.91 |
| Overweight (BMI 85–95%) | 17% (13) | 20% (4) | 14% (10) | |
| Normal weight (BMI 15–85%) | 55% (43) | 65% (13) | 58% (43) | |
| Underweight (BMI 5–15%) | 9% (7) | 0% (0) | 8% (6) | |
| Severely underweight (BMI <5%) | 8% (6) | 10% (2) | 9% (7) | |
| Habitual exercise (hours/week) | 4.3 (IQR: 1.9–10.3) | 8 (IQR: 6.1–11.8) | 6.7 (4.4–10.4) | 0.005 |
| Maximal exercise class % (n)* | ||||
| I | 5% (4) | 0% (0) | 0% (0) | 0.09 |
| II | 17% (13) | 10% (2) | 7% (5) | |
| III | 29% (23) | 20% (4) | 28% (21) | |
| IV | 49% (38) | 70% (14) | 65% (48) | |
| Restriction (by cardiologist) % (n) | ||||
| Unrestricted | 62% (48) | 55% (11) | 26% (19) | <0.001 |
| Moderately strenuous activity | 26% (20) | 35% (7) | 55% (41) | |
| Mildly strenuous activity | 10% (8) | 5% (1) | 19% (14) | |
| No activity | 1% (1) | 5% (1) | 0% (0) | |
| Missing/chose not to answer | 1% (1) | 0% (0) | 0% (0) |
Abbreviations: BMI body mass index, IQR interquartile range, TGA transposition of the great arteries