TABLE 1.
Study Population Characteristics
| Variable | Neonates (n = 17 064) | Infants (n = 14 310) | ||||
|---|---|---|---|---|---|---|
| Prenatal Diagnosis Yes (n = 7373) | Prenatal Diagnosis No (n = 9691) | P | Prenatal Diagnosis Yes (n = 3422) | Prenatal Diagnosis No (n = 10 888) | P | |
| Age at surgery, d | 6.0 (4.0, 9.0) | 8.0 (5.0, 13.0) | <.0001 | 101 (63, 137) | 103 (67, 139) | .0068 |
| Wt at surgery, kg | 3.1 (2.7, 3.5) | 3.2 (2.8, 3.6) | <.0001 | 4.6 (3.8, 5.5) | 4.7 (3.9, 5.6) | <.0001 |
| Gender, n (%) male | 4170 (56.6) | 5865 (60.5) | <.0001 | 1761 (51.5) | 5808 (53.3) | .0514 |
| Chromosomal abnormality or syndrome | 1903 (25.8) | 1884 (19.4) | <.0001 | 1784 (52.1) | 3922 (36.0) | <.0001 |
| Noncardiac anomaly | 179 (4.4) | 90 (2.1) | <.0001 | 128 (6.1) | 147 (2.9) | <.0001 |
| STAT category 4 or 5 a | 5422 (73.6) | 5407 (55.8) | <.0001 | 914 (26.7) | 2043 (18.8) | <.0001 |
Data for continuous variables are presented as median and interquartile range and for categorical variables as N (%).
a
STAT Mortality category indicates relative surgical complexity on a scale of 1–5, with higher numbers representing more complex diagnoses.