Table 4.
Ordinal regression between the first cUS imaging, basic characteristics, and PDI among very preterm infants
| Items | Estimate | SE | Wald χ2 | OR | P | |
|---|---|---|---|---|---|---|
| Threshold value | [PDI = died] | 12.926 | 6.674 | 3.751 | 1.000 | 0.053 |
| [PDI = abnormal] | 13.202 | 6.679 | 3.908 | 1.000 | 0.048 | |
| [PDI = mildly abnormal] | 14.063 | 6.693 | 4.415 | 1.000 | 0.036 | |
| Basic characteristics | Twins or multiplets | 0.652 | 0.430 | 2.303 | 1.919 | 0.129 |
| Hospitalization duration | −0.022 | 0.005 | 15.919 | 0.978 | 0.000 | |
| Gestational age | −0.336 | 0.247 | 1.857 | 0.715 | 0.173 | |
| Weight | −4.448 | 1.262 | 12.429 | 0.012 | 0.000 | |
| First cUS imaging | CPH | 0.015 | 0.425 | 0.001 | 1.015 | 0.971 |
| GMH Grade 3, 4 | 1.967 | 0.880 | 4.999 | 7.149 | 0.025 | |
| GMH Grade 1, 2 | 0.734 | 0.576 | 1.628 | 2.083 | 0.202 | |
| PVE III | 0.932 | 0.856 | 1.184 | 2.540 | 0.277 | |
| PVE II | 0.191 | 0.610 | 0.098 | 1.210 | 0.754 | |
| PVE I | 0.000 | 1.000 |
PDI: Psychomotor developmental index; cUS: Cranial ultrasound; PVE: Periventricular echodensities; GMH: Germinal matrix hemorrhage; CPH: Choroid plexus hemorrhage; SE: Standard error; OR: Odds ratio.