Comparison of infants surviving to day 14 and classified by degree of ventricular dilatation on measures of perinatal status
| Measure | No ventricular dilatation (n=112) | Non-progressive ventricular dilatation (n= 53) | Progressive ventricular dilatation (n=56) | p Value |
|---|---|---|---|---|
| Where applicable, values are mean (SD). The test of significance was based on the χ2 test of independence for dichotomous measures and one way analysis of variance for continuous measures. | ||||
| *Pco2 values for nine children who were not ventilated were set to an arbitrary value of 40. Excluding these nine children does not materially alter the strength of this association. | ||||
| IVH, Intraventricular haemorrhage. | ||||
| % Male | 54.1 | 68.5 | 55.4 | > 0.15 |
| Gestation (weeks) | 27.9 (2.7) | 26.2 (2.2) | 26.2 (2.0) | < 0.0001 |
| Birth weight (g) | 1053 (285) | 965 (297) | 938 (273) | < 0.05 |
| CRIB score | 4.6 (4.1) | 6.0 (4.2) | 7.1 (4.1) | < 0.001 |
| % Maximum IVH grade 3 or 4 | 0.0 | 29.6 | 80.4 | <0.0001 |
| Maximum Pco2* | 53.6 (14.0) | 62.2 (16.3) | 60.1 (15.6) | < 0.001 |
| % Hypertension | 51.4 | 46.3 | 50.0 | > 0.8 |
| % Inotropic support | 45.9 | 63.0 | 75.0 | < 0.001 |
| % Antenatal steroids | 81.1 | 77.8 | 69.6 | >0.20 |