Table 2.
Kaplan–Meier survival estimate of mortality in the first year of life by type of birth defect, Republic of Ireland, 2006–2018. For data initially reported in minutes or hours, ‘1 day’ was considered survival to 24 h, or 1440 min. This data represents only those infants live-born and does not include cases antenatally diagnosed, or diagnoses made in miscarriages or stillborn infants
| Survival estimates (%, Kaplan–Meier 95% confidence interval) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type of birth defect | N | Median survival | 1 day | CI | 7 days | CI | 28 days | CI | 90 days | CI | 180 days | CI | 1 year | CI |
| Trisomy 18 | 170 | 3 days | 61.2 | 53.4–68.0 | 38.2 | 31.0–45.5 | 20.6 | 14.9–27.0 | 5.9 | 3.0–10.1 | 2.4 | 0.8–5.5 | 0.6 | 0.05–2.3 |
| Trisomy 13 | 119 | 3 days | 63.0 | 53.7–71.0 | 30.3 | 22.3–38.6 | 20.2 | 13.5–27.8 | 12.6 | 7.4–19.2 | 8.4 | 4.3–14.2 | 5.9 | 2.6–11.1 |
| Anencephaly | 95 | 107 min | 10.5 | 5.4–17.6 | 2.1 | 0.4–6.7 | 0 | – | – | – | – | – | – | – |
| Renal agenesis | 60 | 101 min | 6.6 | 2.1–14.8 | 0 | – | – | – | – | – | – | – | – | – |
| Thanatophoric dysplasia | 14 | 90 min | 0 | – | – | – | – | – | – | – | – | – | – | – |