One-year follow-up of conservative and surgical treatment results for patients diagnosed with lumbar spinal stenosis

Table 1 Baseline demographic characteristics of study

		Min-max	Median	mean ± SD/n (%)
Age		55.0-83.0	65.0	65.3 ± 7.21
Sex	Female			25 (62.5)
	Male			15 (37.5)
Occupation	Unemployed			33 (82.5)
	Active worker			7 (17.5)
Educational status	Uneducated			1 (2.5)
	Primary school			14 (35)
	Middle school			10 (25)
	High school			12 (30)
	University			3 (7.5)
Sensory loss	(-)			24 (60)
	(+)			16 (40)
Incontinence	(-)			27 (67.5)
	(+)			13 (32.5)
Spinous process sensitivity	(-)			30 (75)
	(+)			10 (25)
Paravertebral muscle spasm	(-)			10 (25)
	(+)			30 (75)
Duration of pain		30.0-450.0	150.0	216.1 ± 139.0
Hand-ground distance		0.0-70.0	15.0	21.6 ± 20.9
Walking distance (m)		10.0-600.0	100.0	143.8 ± 164.5
Visual pain score during movement		5.0-10.0	8.0	8.1 ± 1.4
Visual pain score during resting		0.0-8.0	3.5	3.4 ± 2.1
Visual pain score during night		0.0-9.0	4.0	3.8 ± 2.8
ILBDI score		11.0-81.0	40.0	40.1 ± 15.7
NEADL score		12.0-56.0	31.5	33.4 ± 13.9
Symptom severity scale of SSS		12.0-32.0	20.0	21.0 ± 5.4
Physical function scale of SSS		5.0-90.0	10.0	14.5 ± 17.8

ILBDI: Istanbul Low Back Pain Disability Index; NEADL: Nottingham Extended Activities of Daily Living; SSS: Swiss Spinal Stenosis Questionnaire.