Table 3.

Clinicopathologic features in Pattern 0 (no pathology) compared to Pattern 1 (diffuse gliosis) in the PVL cases.

Feature	Pattern=1 (n=6)	Pattern=0 (n=9)	P-value*
Gestational Age (mean)	31.8 ± 5.8	32.1 ± 4.4	0.89
Postnatal Age (mean)	7.8 ± 11.9	1.8 ± 1.5	0.28
Postconceptional Age (mean)	39.5 ± 10.5	33.9 ± 3.8	0.26
Male	67% (4/6)	44% (4/9)	0.61
Apgar 5 minutes (mean)	4.0 ± 2.6	7.8 ± 0.8	0.02
Percent ≤34 weeks	50% (3/6)	78% (7/9)	0.33
Congenital. Heart Disease	16.7% (1/6)	22.2% (2/9)	0.99
Necrotizing Enterocolitis	16.7% (1/6)	33.3% (3/9)	0.60
Sepsis	50.0% (3/6)	22.2% (2/9)	0.33
Mechanical Ventilation	100% (5/5)	63% (5/8)	0.23
Seizures any time	50% (3/6)	0% (0/9)	0.04

^*T-tests for continuous measures and Fisher’s Exact test for categorical measures were applied. P-value <0.05 was considered significant.