10 December 2020>: Review Articles
The Prognosis of Preterm Infants Born at the Threshold of Viability: Fog Over the Gray Zone – Population-Based Studies of Extremely Preterm Infants
Eszter Fanczal AE , Botond Berecz A , Annamária Szijártó A , Ákos Gasparics AD* , Péter Varga ABCEFDOI: 10.12659/MSM.926947
Med Sci Monit 2020; 26:e926947
Table 1 Selected large population-based studies on extremely preterm infants.
Study | Country/State | Years of the study | Gestational age | The number of all infants | The number of actively treated infants |
---|---|---|---|---|---|
EPIBEL []4 | Belgium | 1999–2000 | 22–26 | 525 | 303 |
NEPS1 []16 | Norway | 1999–2000 | 22–27 | 638 | 464 |
NEPS2 []17 | Norway | 2013–2014 | 22–26 | 275 | 251 |
Kugelman []7 | Israel | 1995–2008 | 23–26 | 4408 | – |
Agarwal []8 | Singapore | 2000–2009 | 23–28 | – | 887 |
EPICURE []18 | UK | 2006 | 22–26 | 3133 | 1686 |
EXPRESS []10 | Sweden | 2004–2007 | 22–26 | – | 707 |
Ishii []11 | Japan | 2003–2005 | 22–25 | – | 1057 |
Doyle []12 | Victoria State (Australia) | 2005 | 22–27 | – | 270 |
Su []13 | Taiwan | 2007–2012 | 23–28 | – | 1718 |
EPIPAGE-2 []5 | France | 2011 | 22–26 | – | 1054 |
Stoll []14 | USA | 2008–2012 | 22–28 | – | 8877 |
Anderson []6 | California | 2007–2011 | 22–28 | 6009 | 5340 |
EPI-SEN []15 | Spain | 2007–2011 | 22–26 | 2937 | 2734 |
Fischer []9 | Swiss | 2000–2004 | 22–25 | 516 | – |
* These studies were divided to several periods. Data were reviewed only from the last period (shown in the table) of these studies. |