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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: Pediatr Res. 2009 May;65(5):524–529. doi: 10.1203/PDR.0b013e3181998baf

Table 1.

Clinicopathologic features of PVL cases compared to control cases.

Feature PVL (n=22) Non-PVL (n=16) P-value*
Gestational Age (mean) 32.5 ± 4.8 36.7 ± 5.2 0.01
Postnatal Age (mean) 4.1 ± 6.6 20.0 ± 39.3 0.13
Postconceptional Age (mean) 36.6 ± 6.6 56.7 ± 40.9 0.07
Male 46% (10/22) 69% (11/16) 0.15
Apgar 5 minutes (mean) 7.1 ± 2.2 6.9 ± 2.6 0.85
Congenital Heart Disease 23% (5/22) 25% (4/16) 0.99
Necrotizing Enterocolitis 27% (6/22) 6% (1/16) 0.20
Sepsis 32% (7/22) 6% (1/16) 0.11
Mechanical Ventilation 84% (16/19) 66% (10/15) 0.42
Seizures any time 23% (5/22) 6% (1/16) 0.37
*

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