Table 2.

Univariate analysis of potential risk factors with the development of hydrocephalus.

Variable	Hydrocephalus (%)	OR (95% CI)	p-value
Hemispherectomy technique
anatomic	74/244 (30%)	4.2 (2.3–7.6)	<0.0001
functional	87/435 (20%)
Basal ganglia/thalamus resected
yes	75/219 (34%)	2.8 (1.2–6.6)	0.02
no	87/471 (18%)
Prior surgery
yes	32/122 (26%)	1.7 (1.1–2.9)	0.03
no	130/568 (23%)
Use of any hemostatic agent
yes	157/649 (24%)	3.6 (1.0–12.2)	0.04
no	5/41 (12%)
Postoperative CSF drainage
yes	485/690 (70%)	0.8 (0.3–2.5)	0.75
no	196/690 (28%)
unknown	6/690 (1%)
Postoperative infection
yes	50/690 (7%)	1.5 (0.7–3.2)	0.25
no	640/690 (93%)
Etiology of epilepsy			0.50