Comparison of clinical outcomes between biportal and uniportal full-endoscopy techniques in lumbar spinal stenosis with bilateral symptoms

Table 1 Characteristics of patients

		Group A		Group B
Gender		Male	Female	Male	Female
		27	25	24	24
Age (years)		53.50 ± 15.20		52.80 ± 13.65
Body mass index (kg/m²)		25.6 ± 6.26		27.53 ± 5.89
Hypertension		Yes	No	Yes	No
		24	28	22	26
Diabetes		Yes	No	Yes	No
		13	39	12	36
Smoking status		Yes	No	Yes	No
		21	31	20	28
Marital status		Married	Unmarried	Married	Unmarried
		50	2	47	1
Surgical segment	L3-4	4		3
	L4-5	24		22
	L5-S1	24		23
Schizas grade	A	0		0
	B	2		1
	C	31		30
	D	19		17