Correlation between severity of spinal stenosis and multifidus atrophy in degenerative lumbar spinal stenosis

Table 1 Patient characteristics of the DLSS group and the control group

Variables	DLSS group	Control group	P value^*
Age	54.04±8.93	48.08±8.93	>0.05
Sex, female	184/232 (79.3%)	48/60 (60%)	-
Sex, male	48/232 (20.7%)	12/60 (40%)	-
Medical history(mon)	6.60±2.57	-	-
L3/4 stenosis	22/232 (9.5%) (F,15; M,7)
L4/5 stenosis	172/232 (74.1%) (F,120; M,52)
L5/S1 stenosis	28/232 (12.1%) (F,16; M,12)

^*t test; Data is presented as mean ± standard deviation; Medical history, how long the patient has been diagnosed with DLSS; mon: month; F: female; M:male; P < 0.05 was considered to show a statistically significant difference

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