Surgical management of chronic subdural hematomas through single-burr hole craniostomy: is it sufficient?

Table 7 Evaluation of speech disturbance preoperatively and throughout the postoperative follow-up period

	Pre^a,b,c		1 day post^d,e		1 week post^f		1 month post
	N	Percentage (%)	N	Percentage (%)	N	Percentage (%)	N	Percentage (%)
Speech disturbance^g
No	24	80.0	24	80.0	28	93.3	26	96.3
Yes	6	20.0	6	20.0	2	6.7	1	3.7

Pre, preoperatively; Post, postoperatively; N, number of patients
^a,b,cPre vs. 1 day p = 1.0, pre vs. 1 week p = 0.12., pre vs. 1 month p = 0.06, respectively
^d,e1 day vs. 1 week p = 0.125, 1 day vs. 1 month p = 0.06, respectively
^f1 week vs. 1 month p = 1.0
^gMcNemar test