Numbness and Weakness Recovered at a Less Extent in Patients with Lumbar Disc Herniation after Percutaneous Endoscopic Lumbar Discectomy

Table 4

Demographics, preoperative clinical data, and imaging grade stratified by surgical outcomes.

Variables	Relief group (71)	Less relief group (15)	value^#
Age, mean (SD)	48.9 (16.47)	51.6 (17.61)	0.572
Male, n (%)	34 (47.9)	10 (66.6)	0.193^#
BMI, mean (SD)	25.4 (3.95)	24.0 (2.80)	0.184^#
Duration of symptoms, mean (SD)	110 (246.5)	158 (253.72)	0.495
Preop ODI, mean (SD)	52.6 (22)	34.3 (20)	0.007^#
Preop SBI total, mean (SD)	9.9 (4.55)	7.4 (2.41)	0.052^#
Preop SBI pain, mean (SD)	4.0 (1.56)	2.3 (1.95)	0.002^#
Preop SBI numbness, mean (SD)	2.7 (2.14)	3.7 (1.49)	0.08^#
Preop SBI weakness, mean (SD)	0.6 (1.11)	1.1 (1.10)	0.186^#
Imaging grade A, n (%)	29 (40.8%)	3 (20%)	0.267

For qualitative variables, the total number of patients and the percentage are provided. For quantitative variables, the mean and standard deviation are provided. These predictive variables are first assessed individually; the significance levels are also listed. ^#Indicates predictive variables included in the final model.