Number of children with and without a congenital heart defect and age at diagnosis, in children born in 1991–95 and 1996–2000 in the Western Götaland Region, Sweden
| Year of birth | Children with a heart defect | Children without a heart defect | ||
|---|---|---|---|---|
| N (%) | Median age at diagnosis Years (range) | N (%) | Median age at diagnosis N (range) | |
| *The proportion of children without a heart defect was significantly higher during the period 1991–95 compared with 1996–2000 (p<0.024, Fisher’s exact two-tailed test). | ||||
| †Children with a heart defect were diagnosed significantly earlier than those without a heart defect (p<0.006, sign test). | ||||
| 1991–95 | 8 (44) | 3.9 (0.01–6.4) | 10 (56) | 6.7 (4.1–10.6)* |
| 1996–2000 | 6 (100) | 0.2 (0.01–4.8) | 0 | – |
| 1991–2000 | 14 (58) | 0.6 (0.01–6.4)† | 10 (40) | 6.9 (4.1–10.6)† |