Relationship between Stereoscopic Vision, Visual Perception, and Microstructure Changes of Corpus Callosum and Occipital White Matter in the 4-Year-Old Very Low Birth Weight Children

Table 1

Comparison of selected demographic and clinical variables between children with abnormal stereoscopic vision and the control group.

	Abnormal stereoscopic vision; ()	Control group; ()	value
Birth weight (mean ± SD)	775 ± 182	1079 ± 240	<0.01^b
Gestational age (mean ± SD)	25.9 ± 1.8	28.3 ± 2.1	<0.01^b
Female	6 (38%)	22 (49%)	0.56
Vaginal delivery	6 (38%)	13 (29%)	0.54
Small for gestational age	4 (25%)	7 (16%)	0.46
5 min Apgar score. Median (25th–75th percentile)	5 (4–7)	6 (5–7)	0.4
Age at evaluation (months). Median (25th–75th percentile)	48 (45–51)	48 (46–49)	0.9
ROP requiring laser therapy	12 (75%)	10 (22%)	<0.01^c
IVH grade III	2 (12.5%)	4 (9%)	0.7
IVH grade IV	0	0	n.a.
PVL	2 (12.5%)	5 (11%)	1.0

Expressed as a number (percentage) of patients unless otherwise indicated; value for Student’s -test. Fisher’s exact test, Mann-Whitney test.
ROP, retinopathy of prematurity; IVH, intraventricular hemorrhage; PVL, periventricular leukomalacia.