Table 1.

Characteristics of 35 patients which classified into two groups.

Variable		A	B	P-value
Age (year)		55.39 ± 11.26	50.65 ± 10.09	0.20
Sex	Male	16 (88.9)	12 (70.6)	0.23
	Female	2 (11.1)	5 (29.4)
Atrophy before operation	No	13	7	0.13
	Yes	5	10
Duration of symptom (months)		6.25 (3-18)	6.00 (4-10)	0.37
Lesion size		4.25 (3-7)	5.00 (3-7)	0.30

Data are represented as mean ± standard deviation, median (minimum and maximum), or frequency (percentage). A: Endoscopic discectomy; B: Endoscopic discectomy + fibrin sealants