Table 1.
Study Population
| MBTTS (n = 148) | RVPAS (n = 158) | P Value | |
|---|---|---|---|
| Hospitals | 0.69 | ||
| 1 | 3% (5) | 7% (11) | |
| 2 | 9% (14) | 12% (19) | |
| 3 | 9% (13) | 8% (12) | |
| 4 | 12% (18) | 11% (17) | |
| 5 | 9% (14) | 12% (18) | |
| 6 | 30% (44) | 27% (42) | |
| 7 | 15% (22) | 13% (20) | |
| 8 | 1% (2) | 0% (0) | |
| 9 | 11% (16) | 10% (15) | |
| Female sex | 39% (57) | 37% (57) | 0.81 |
| Race | 0.47 | ||
| White | 80% (118) | 81% (124) | |
| Black | 17% (25) | 14% (21) | |
| Other/missing | 3% (5) | 6% (9) | |
| Hispanic ethnicity | 20% (29) | 28% (43) | 0.10 |
| Birth weight (kg) | 3.1 ± 0.6 | 3.0 ± 0.5 | 0.08 |
| Gestational age <38 wk (%) | 30% (45) | 31% (43) | 1.00 |
| Age at Norwood (d) | 5.1 ± 3.3 | 5.1 ± 3.3 | 0.94 |
| Payer | 0.90 | ||
| Private | 41% (60) | 40% (61) | |
| Public | 39% (58) | 42% (64) | |
| Other | 20% (30) | 19% (29) | |
| Primary diagnosis | 0.44 | ||
| HLHS | 87% (129) | 86% (132) | |
| Critical AS | 1% (1) | 0% (0) | |
| Single RV with outflow tract obstruction | 5% (8) | 3% (5) | |
| RV dominant AV canal | 5% (7) | 6% (10) | |
| Other | 2% (3) | 5% (7) | |
| Prenatal diagnosis | 74% (110) | 82% (126) | 0.13 |
| Aortic atresia | 66% (97) | 66% (102) | 0.90 |
| Pulmonary vein stenosis | 3% (5) | 4% (6) | 1.00 |
| Associated diagnosis | 30% (44) | 25% (38) | 0.36 |
Values are % (n).
AS = aortic stenosis; AV = atrioventricular; HLHS = hypoplastic left heart syndrome; MBTTS = modified Blalock-Taussig-Thomas shunts; RVPAS = right ventricle to pulmonary artery shunts.