Table 2.

The correlation between the first and the last cUS imaging among very preterm infants

First cUS imaging	Last cUS imaging
	Hydrocephalus		Widened extracranial space		Subependymal cyst
	Correlation coefficient	P	Correlation coefficient	P	Correlation coefficient	P
GMH-IVH	0.275	0.010	0.021	0.845	0.111	0.309
CPH	0.130	0.908	0.581	0.128	0.088	0.422
PVE degree	0.280	0.009	0.215	0.047	0.018	0.871
GMH + CPH	0.092	0.400	0.046	0.675	0.111	0.309

cUS: Cranial ultrasound; PVE: Periventricular echodensities; GMH: Germinal matrix hemorrhage; CPH: Choroid plexus hemorrhage; IVH: Intraventricular hemorrhage.