Table 1. Fontan Cross-Sectional Study Patient Characteristics for 521 Subjects with an ECG or undergoing an Exercise Test.
| Characteristic | n | Result |
|---|---|---|
| Age at enrollment, yr (median) | 521 | 11.9±3.4 (11.3) |
| Age at Fontan procedure, yr (median) | 521 | 3.4±1.9 (2.8) |
| Male | 521 | 315 (60.5%) |
| Race | 519 | |
| White | 411 (79.2%) | |
| Black | 55 (10.6%) | |
| Asian | 14 (2.7%) | |
| Other | 39 (7.5%) | |
| Type of Volume | 389 | |
| Unloading Surgery | ||
| Bi-directional Glenn | 272 (69.9%) | |
| Hemi-Fontan | 101 (26.0%) | |
| Other | 16 (4.1%) | |
| Fontan Type | 521 | |
| Atriopulmonary connection | 72 (13.8%) | |
| Intracardiac lateral tunnel | 307 (58.9%) | |
| Extracardiac lateral tunnel | 62 (11. %) | |
| Extracardiac conduit | 69 (13.2 %) | |
| Other | 11 (2.1%) | |
| Current Pacemaker | 521 | 68 (13.1%) |
| History of Atrial Tachycardia | 521 | 50 (9.6%) |