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TABLE 3: VBR delta values of certain subgroups and P values yielded by means of U tests
Clinical Factor n VBR Delta Median (%) VBR Delta Range (%) P
Stay on intensive care unit 
    Yes 16 12.42 0–102 0.027
    No 24 4.40 −5–26 
Epileptic seizures during the acute stage 
    >2/status ep. 9 26.03 0–91 0.021
    0–2 31 4.65 −5–102 
Epilepsy at follow-up 
    Yes 8 26.6 0–91 0.015
    No 32 5.07 −5–102
Note:—VBR indicates ventricle brain ratio.

Clinical Factor	n	VBR Delta Median (%)	VBR Delta Range (%)	P
Stay on intensive care unit
Yes	16	12.42	0–102	0.027
No	24	4.40	−5–26
Epileptic seizures during the acute stage
>2/status ep.	9	26.03	0–91	0.021
0–2	31	4.65	−5–102
Epilepsy at follow-up
Yes	8	26.6	0–91	0.015
No	32	5.07	−5–102