Table 6.
Ordinal regression between the last cUS imaging, basic characteristics, and PDI among very preterm infants
| Items | Estimate | SE | Wald χ2 | OR | P | |
|---|---|---|---|---|---|---|
| Threshold value | [PDI = abnormal] | −23.174 | 10.912 | 4.510 | 1.000 | 0.034 |
| [PDI = mildly abnormal] | −19.859 | 10.739 | 3.419 | 1.000 | 0.064 | |
| Basic characteristics | Twins or multiplets | 0.217 | 0.691 | 0.099 | 1.242 | 0.753 |
| Hospitalization duration | −0.012 | 0.010 | 1.608 | 0.988 | 0.205 | |
| Gestational age | −0.682 | 0.392 | 3.028 | 0.506 | 0.082 | |
| Weight | −1.980 | 1.713 | 1.335 | 0.138 | 0.248 | |
| Last cUS imaging | Widened extracranial space | 0.095 | 0.639 | 0.022 | 1.100 | 0.882 |
| Subependymal cyst | 1.087 | 1.431 | 0.577 | 2.965 | 0.447 | |
| Moderate/severe hydrocephalus | 4.760 | 1.147 | 17.223 | 116.746 | 0.000 | |
| Mild hydrocephalus | 0.276 | 0.757 | 0.133 | 1.318 | 0.716 | |
| Extensive c-PVL | 4.342 | 1.463 | 8.807 | 76.861 | 0.003 | |
| Local PVL | 1.082 | 1.749 | 0.383 | 2.951 | 0.536 |
PDI: Psychomotor developmental index; cUS: Cranial ultrasound; SE: Standard error; OR: Odds ratio; PVL: Periventricular leukomalacia; c-PVL: Cystic-PVL.