Table 4. Multiple births rates (MBR) and rate ratios of fetal and neonatal mortality by multiplicity in participating countries in 2010.
| Total | Fetal mortality ≥ 28 weeks | Neonatal mortality | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of births | Singletons | Multiples | Risk ratio | Singletons | Multiples | Risk ratio | |||
| Quartile of multiple birth rates | Country | Singletons | Multiples | per 1000 total births | per 1000 total births | RR (95% CI) | per 1000 live births | per 1000 live births | RR (95% CI) |
| Lowest MBR <15 ‰ | Romania | 209 120 | 3933 | 3.8 | 15.0 | 4.0 (3.0–5.2) | 4.5 | 26.8 | 6.0 (4.9–7.3) |
| Latvia | 18 764 | 484 | 4.0 | 8.5 | 2.1 (0.8–5.7) | 3.2 | 14.7 | 4.6 (2.1–9.9) | |
| Lithuania | 30 167 | 810 | 3.3 | 7.6 | 2.3 (1.0–5.3) | 2.3 | 15.1 | 6.4 (3.5–11.9) | |
| Poland | 403 781 | 11 234 | 2.9 | 6.9 | 2.4 (1.9–3.0) | 3.2 | 15.3 | 4.8 (4.1–5.7) | |
| Iceland | 4 765 | 138 | 1.9 | 0.0 | 1.9 (0.1–33.0) | 0.6 | 22.2 | 35.6 (7.3–174.9) | |
| Sweden | 111 721 | 3286 | 2.7 | 5.8 | 2.3 (1.4–3.6) | 1.3 | 9.6 | 7.2 (4.9–10.5) | |
| Slovakia | 54 204 | 1621 | 2.9 | 8.9 | 3.0 (1.8–5.2) | 1.4 | 16.2 | 11.5 (7.4–17.9) | |
| Pooled RR | 2.8 (2.2–3.5) | 6.7 (5.1–8.8) | |||||||
| MBR 15–16 ‰ | Estonia | 15 412 | 472 | 2.7 | 2.2 | 0.8 (0.1–5.8) | 1.8 | 4.4 | 2.4 (0.6–10.0) |
| Portugal | 98 690 | 3100 | 2.3 | 5.6 | 2.5 (1.5–4.0) | 1.4 | 9.4 | 6.7 (4.5–10.0) | |
| UK: Northern Ireland | 24 902 | 790 | 3.3 | 8.0 | 2.3 (1.0–5.4) | 3.1 | 25.6 | 8.7 (5.3–14.2) | |
| Finland | 59 484 | 1887 | 1.9 | 5.4 | 2.9 (1.5–5.6) | 1.2 | 11.7 | 9.9 (6.2–16.0) | |
| UK: England and Wales | 699 494 | 22 431 | 3.6 | 8.3 | 2.3 (2.0–2.6) | 2.2 | 12.4 | 5.6 (4.9–6.3) | |
| Italy | 529 226 | 17 293 | 2.2 | 6.8 | 3.0 (2.5–3.7) | 1.4 | 11.4 | 8.2 (7.0–9.6) | |
| UK: Scotland | 57 860 | 1813 | 3.5 | 7.4 | 2.2 (1.2–3.8) | 2.1 | 14.6 | 6.8 (4.5–10.4) | |
| Norway | 60 831 | 2081 | 2.1 | 7.6 | 3.6 (2.1–6.2) | 1.7 | 10.2 | 6.2 (3.9–9.9) | |
| BE: Wallonia | 37 133 | 1297 | 2.8 | 16.0 | 5.7 (3.6–9.2) | 1.5 | 19.0 | 12.5 (7.8–20.1) | |
| Pooled RR | 2.6 (2.2–3.0) | 7.0 (5.7–8.5) | |||||||
| MBR 17–18 ‰ | Ireland | 73 041 | 2554 | 3.7 | 3.6 | 1.0 (0.5–1.9) | 1.8 | 10.3 | 5.6 (3.7–8.5) |
| Austria | 76 226 | 2763 | 2.4 | 4.5 | 1.9 (1.0–3.4) | 1.7 | 15.6 | 9.4 (6.6–13.2) | |
| France | 14 455 | 443 | 4.1 | 11.4 | 2.8 (1.1–6.9) | NA | NA | - | |
| Netherlands | 172 707 | 6131 | 2.6 | 10.3 | 3.9 (3.0–5.1) | 2.9 | 14.6 | 5.0 (4.0–6.2) | |
| Luxembourg | 6 321 | 239 | 2.9 | 4.4 | 1.5 (0.2–11.5) | 0.6 | 25.6 | 40.3 (11.4–141.8) | |
| Switzerland | 77 314 | 2962 | 1.9 | 8.8 | 4.7 (3.1–7.1) | 1.9 | 18.5 | 9.5 (7.0–12.9) | |
| Slovenia | 21 589 | 827 | 3.2 | 6.3 | 2.0 (0.8–4.9) | 1.3 | 14.7 | 11.3 (5.8–22.1) | |
| Germany | 613 796 | 23 868 | 2.2 | 4.4 | 2.0 (1.7–2.5) | NA | NA | - | |
| Pooled RR | 2.4 (1.7–3.5) | 8.4 (5.8–12.3) | |||||||
| Highest MBR ≥19 ‰ | BE: Flanders | 67 330 | 2646 | 2.6 | 8.6 | 3.3 (2.1–5.1) | 1.8 | 13.8 | 7.5 (5.2–10.9) |
| Malta | 3 872 | 164 | 3.1 | 12.5 | 4.0 (0.9–17.8) | 4.4 | 6.2 | 1.4 (0.2–10.5) | |
| Spain | 383 262 | 16 891 | 2.5 | 5.9 | 2.3 (1.9–2.9) | NA | NA | - | |
| Denmark | 60 899 | 2614 | 2.3 | 2.0 | 0.8 (0.3–2.1) | 1.6 | 8.4 | 5.1 (3.2–8.1) | |
| Czech Republic | 112 116 | 4804 | 1.4 | 1.7 | 1.2 (0.6–2.4) | 1.4 | 8.6 | 6.3 (4.5–8.9) | |
| BE: Brussels | 23 932 | 1149 | 3.9 | 7.2 | 1.8 (0.9–3.8) | 2.6 | 5.3 | 2.0 (0.9–4.7) | |
| Cyprus | 8 120 | 461 | NA | NA | - | NA | NA | - | |
| Pooled RR | 2.4 (1.5–3.6) | 5.9 (3.8–9.0) | |||||||
| All countries | Weighted average | 4 128 350 | 141 156 | 2.9 | 7.0 | 2.1 | 13.9 | ||
| Median | 30 countries | 2.8 | 7.0 | 27 countries | 1.8 | 14.6 | |||
| Pooled RR | 2.4 (1.5–3.6) | 7.0 (6.1–8.0) | |||||||
NOTE: Gestational age = best obstetric estimate in completed weeks. Data from France are from a nationally representative survey. Data from Cyprus are from 2007.