Study | Year of publication | Region (No. Of Centers) | Period of data collection | Study design† | Non-ventilated patients included | No. of patients derivation cohort | ROC timing | Gestational age (wks, mean ± SD) | Original outcome | Internal/ External validation | No. of patients validation cohort‡ |
---|---|---|---|---|---|---|---|---|---|---|---|
Derivation cohorts | |||||||||||
Cohen [12] | 1983 | USA (1) | 1987-1981 | Pros | No | - | 2d | Un§ | Death/BPD 30d | Yes/No | 69/- |
Hakulinen [13] | 1988 | Finland (1) | 1978-1982 | Pros | Yes | 91 | 1d | Un§ | Death/BPD 28d | No/No | −/− |
Sinkin [14] | 1990 | USA (3) | 1983-1985 | Retro | Yes | 160 | 12 h | 30.9 (±4.2) | BPD 28d | Yes/Yes | 49/189 |
Palta [26] | 1990 | USA (5) | - | Retro | Yes | - | 3d | Un§ | BPD 30d | Yes/No | 42/- |
Parker [27] | 1992 | USA (1) | 1976-1990 | Retro | Yes | 2375 | at adm. | Un§ | Death/BPD 28d | Yes/No | Un§/- |
Corcoran [28] | 1993 | UK (1) | 1980-1990 | Retro | No | 312 | 3d | Un§ | BPD 28d | Yes/No | 100/- |
Ryan 1994 [29] | 1994 | UK (2) | 1988-1989 | Retro | No | 166 | 7d | 28 (23–31)£ | BPD 28d | No/Yes | -/133 |
Rozycki [30] | 1996 | USA (1) | 1987-1991 | Retro | No | 698 | 8 h | Un§ | BPD 28d | No/No | −/− |
Ryan 1996 [31] | 1996 | UK (1) | 1991-1992 | Retro | No | 202 | 4d | 28 (23–27)£ | BPD 36w | Yes/No | 47/- |
Romagnoli [32] | 1998 | Italy (1) | 1989-1991 | Retro | No | 50 | 3d, 5d | 28.4 (±2.2) | BPD 28d | Yes/No | 149/- |
Yoder [33] | 1999 | USA (3) | 1990-1992 | Pros | Yes | 107 | 12 h, 72 h | Un§ | Death/BPD 36w | Yes/Yes | 54/56 |
Kim [34] | 2005 | Korea (1) | 1997-1999 | Retro | Yes | 197 | 4d, 7d | 28.2 (±1.9) | BPD 36w | Yes/No | 107/- |
Cunha [35] | 2005 | Brasil (1) | 2000-2002 | Pros | No | 86 | 7d | 27.2 (±3.2) | BPD 36w | No/No | −/− |
Choi [36] | 2006 | Korea (Un§) | - | - | No | 81 | 1d, 4d, 7d | Un§ | BPD 36w | No/No | −/− |
Henderson-Smart [37] | 2006 | Aus/NZ (25) | 1998-1999 | Pros | Yes | 5599 | at birth | 29 (27–30)£ | BPD 36w | Yes/No | 5854/- |
Bhering [38] | 2007 | Brasil (1) | 1998-2003 | Retro | Yes | 247 | 7d | 29.1 (±2.4) | BPD 36w | Yes/No | 61/- |
Ambalavanan [39] | 2008 | USA (16) | 2001-2003 | Pros | No | 420 | variable | 26 (±2) | Death/BPD 36w | No/No | −/− |
Laughon [40] | 2011 | USA (17) | 2000-2004 | Pros | Yes | 2415 | 1d, 3d, 7d | 26.7 (±1.9) | Death/BPD 36w | Yes/Yes | 1214/1777 |
Validation cohorts | |||||||||||
Subhedar [41] | 2000 | UK (1) | - | Retro | No | NA | <24 h | 29 (26–30)£ | Death/BPD 36w | - | NA/155 |
Srisuparp [42] | 2003 | USA (1) | 1996-1997 | Retro | No | NA | <6 h | 27.6 (±2.4) | BPD 36w | - | NA/138 |
Choukroun [43] | 2003 | France (1) | - | Retro | No | NA | at SF/18 h after | 29.5 (±1.5) | BPD 36w | - | NA/44 |
Greenough [44] | 2004 | UK (1) | 1998-2001 | Retro | No | NA | 7d | 26 (24–28.6)£ | Death/BPD 36w | - | NA/59 |
Fowlie [45] | 1998 | UK (6) | 1988-1990 | Retro | Yes | NA | 72 h | 29 (23–38)£ | Death/BPD 36w | - | NA/398 |
Hentschel [46] | 1998 | Germany (1) | 1991-1993 | Retro | Yes | NA | at adm. | 28.6 (±0.3) | Death/BPD 36w | - | NA/188 |
Chien [47] | 2002 | Canada (17) | 1996-1997 | Pros | Yes | NA | at adm. | 29 (±2) | BPD 36w | - | NA/4226 |
May [48] | 2007 | UK (1) | 2004-2005 | Retro | Yes | NA | 2d | Un§ | BPD 28d/36w | - | NA/75 |