Percentage survival and morbidities for NICORE centres compared with VON centres for VLBW infants 2004–7
| NICORE Ireland | VON | |||||||
| 2004 | 2005 | 2006 | 2007 | 2004 | 2005 | 2006 | 2007 | |
| N = 716 | N = 718 | N = 659 | N = 796 | N = 40918 | N = 46166 | N = 50242 | N = 54073 | |
| Survival | 81 (74, 86) | 82 (77, 91) | 85 (81, 90) | 85 (81, 91) | 85 (82, 90) | 86 (82, 90) | 86 (83, 91) | 86 (83, 91) |
| Survival without morbidity | 42 (36, 50) | 46 (37, 56) | 48 (39, 53) | 48 (38, 64) | 49 (42, 59) | 49 (42, 60) | 50 (43, 60) | 51 (44, 62) |
| Severe IVH | 11 (6, 13) | 10 (3, 16) | 10 (0, 13) | 5 (2, 6) | 10 (5, 13) | 9 (5, 13) | 9 (5, 12) | 6 (2, 7) |
| CLD at 36 weeks | 19 (13, 25) | 19 (12, 24) | 21 (7, 27) | 15 (6, 18) | 28 (16, 33) | 28 (14, 34) | 27 (14, 33) | 24 (12, 30) |
| CONS sepsis | 26 (13, 30) | 26 (16, 34) | 25 (15, 41) | 25 (10, 34) | 13 (5, 17) | 13 (5, 17) | 12 (4, 16) | 12 (3, 15) |
Each tabulated measure includes the observed value (25th and 75th percentiles) for infants born in 2004–7 in the Neonatal Intensive Care Outcomes Research and Evaluation (NICORE) Ireland group and the Vermont Oxford Neonatal Network (VON) comparison value.