Table 1.
Characteristics of LSL cases and their parents
| Characteristic | N (%) |
|---|---|
| Case sex | |
| Male | 243 (63.0) |
| Female | 143 (37.0) |
| Cases’ year of birth1 | |
| Prior to 1999 | 144 (37.5) |
| 1999 or later | 240 (62.5) |
| Race/Ethnicity (parental mating pairs)2 | |
| White | 301 (79.0) |
| Black | 26 (6.8) |
| Hispanic | 9 (2.4) |
| Asian | 3 (0.8) |
| Mixed | 42 (11.0) |
| Primary diagnosis | |
| Hypoplastic left heart syndrome | 177 (45.9) |
| Coarctation of the aorta3 | 126 (32.6) |
| Aortic valve stenosis | 77 (19.9) |
| Other4 | 6 (1.6) |
1
Information on year of birth was missing for two cases
2
Information on parental race was missing for five cases
3
Includes 8 with ventricular septal defect.
4
Includes isolated mitral valve anomalies (n=3), supravalvar aortic stenosis (n=2), subaortic membrane (n=1).