Table 1
Comparison between the outcomes for grade 3–4 intraventricular haemorrhage (IVH) in the three studies
| Murphy et al1 | MMC 1980s3 | MMC 1997–2001 | |
|---|---|---|---|
| *Rate for all infants <35 weeks. | |||
| **Rate for all deaths <30 days. | |||
| MMC, Maine Medical Center; PVD, progressive ventricular dilatation; VP, ventriculoperitoneal. | |||
| Grade 3–4 IVH (% of all <1500 g) | 79 (7%) | 94 (6%) | 29 (6%) |
| Death <14 days | 18/79 (23%) | 29/94 (30%)** | 8/29 (28%)** |
| PVD requiring treatment | 34/61 (56%) | 24/65 (37%) | 11/21 (52%) |
| VP shunt/late death (% of PVD treatment) | 18/8 (26/34=76%) | 12/3 (15/24=63%) | 6/1 (7/11=63%) |
