Comparison of characteristics between infants assigned an MPC score at the 5-year assessment and those with no score
| Characteristic | With MPC score n = 1503 No. (%) | Without MPC score n = 239 No. (%) | p-value |
|---|---|---|---|
| Cerebral lesion | 1484 | 235 | 0.001 |
| Cystic PVL | (2) | (5) | |
| IPH | (0) | (2) | |
| Persistent echodensities or ventricular dilatation | (13) | (14) | |
| Grade III IVH | (2) | (1) | |
| Grade II IVH | (6) | (7) | |
| Grade I IVH | (10) | (9) | |
| None | (67) | (62) | |
| Gestational age at birth (weeks) | 1503 | 239 | 0.07 |
| 24–28 | (24) | (24) | |
| 29–30 | (27) | (20) | |
| 31–32 | (48) | (55) | |
| Birth weight (g) | 1497 (1361 ± 387*) | 236 (1402 ± 429*) | 0.1 |
| Male sex | 1503 (51) | 239 (53) | 0.6 |
| Multiple pregnancy | 1503 (31) | 239 (33) | 0.4 |
| Parents' socio-economic status† | 1498 | 235 | <0.001 |
| High | (16) | (9) | |
| High intermediate | (51) | (41) | |
| Low intermediate | (15) | (17) | |
| Low | (18) | (33) |
PVL = periventricular leukomalacia; IPH = intraparenchymal haemorrhage; IVH = intraventricular haemorrhage.
Numbers in italic are denominators for each characteristic.
*
Values are means ± SD.
†
The parent's socio-economic status is defined as the highest occupational status between the mother's and the father's status and classified into high (professional), high intermediate (intermediate, administrative/public service, self-employed or student), low intermediate (shop assistant or service worker) and low (manual worker or unemployed).