Table 3.

GCS scores were compared before surgery and 7 days postoperatively between the two groups

	N	The GCS scores at admission	The GCS scores 7 days postoperatively	t	P	D-value
Study group	35	8.09±2.74	11.80±4.62	5.891	0.000	3.71±3.73
Control group	79	7.62±3.42	9.19±5.47	2.698	0.009	1.57±5.17
t		0.709				2.210
P		0.480				0.029

Note: N, number of patients.

Abbreviation: GCS, Glasgow coma scale.