TABLE 2

Percent Survival Rates According to Weeks of Gestation

CountryWeeks of Gestation
22232425
Australia150a29a50a65a
Australia1620a52a65a78a
Belgium170a14a58.5a60a
Canada180–349–5426–7644–85
Germany2150b6075
WAPM, international association241–158–3326–51
Ireland2610c
Dutch Pediatric Society, Netherlands3020–30d44–48d
Poland326–2626–5544–77
Portugal330–110–1126-5044–61
Sweden360–212–4617-5935-85
Switzerland10–104–5230–6751–81
Nuffield Council, United Kingdom37111–4326-6344
BAPM, United Kingdom381.5112644
Royal College of Obstetricians and Gynaecologists, United Kingdom3916a29a46a69a
ACOG, United States4121305075
Joint Workshop, United States435–5126–7655–8772–80
  • ACOG, American College of Obstetricians and Gynecologists; BAPM, British Association of Perinatal Medicine; WAPM, World Association of Perinatal Medicine.

  • a Survival rates cited as percentage of NICU admissions.

  • b Combined survival rates for 22 and 23 weeks’ gestation.

  • c Combined survival rates for <24 weeks’ gestation and <500 g birth weight.

  • d Survival rates reported as survival for infants ≤24 weeks’ gestation or 25/26 weeks’ gestation.