Occurrence of patent foramen ovale and patent ductus arteriosus
| Study group (n = 50) | Control group (n = 50) | p Value | |
|---|---|---|---|
| Patent foramen ovale | 50 (100%) | 41 (82%) | <0.005 |
| Patent ductus arteriosus | 30 (60%) | 6 (12%) | <0.0001 |
| Age ⩽ 24 h | 19/21 (90%) | 4/5 (80%) | NS |
| Age > 24 h | 11/29 (38%) | 2/45 (4%) | <0.001 |