| Follow up | |||
|---|---|---|---|
| Study group | Control group | ||
| First study | n=50 | n=50 | |
| 9 normal scan | |||
| 6 weeks | n=44 | n=33 | |
| 28 no murmur | 1 murmur, normal scan | ||
| 7 murmur, normal scan | 5 DNA (all seen at 3 months) | ||
| 6 DNA (all seen at 3 months) | |||
| 3 months | n=15 | n=6 | |
| 7 no murmur | 5 no murmur, normal scan | ||
| 5 murmur, normal scan | 1 murmur, normal scan | ||
| 6 months | n=3 | ||
| 2 no murmur | |||
| 1 murmur, normal scan | |||
DNA=did not attend.