Table 2 Baseline characteristics before propensity score matching
Demographics | OSE group (n = 62) | UBE group (n = 98) | SMD | P value |
|---|---|---|---|---|
Age (years) | 61.55 ± 10.88 | 61.13 ± 10.33 | 0.040 | 0.862 |
BMI (kg/m2) | 24.76 ± 2.89 | 23.92 ± 3.00 | 0.282 | 0.080 |
Gender, n (%) | Â | Â | 0.321 | 0.047 |
 Male | 30 (48.39) | 63 (64.29) |  |  |
 Female | 32 (51.61) | 35 (35.71) |  |  |
Medical history | ||||
 Hypertension, n (%) | 22 (35.48) | 30 (30.61) | 0.104 | 0.522 |
 Diabetes, n (%) | 15 (24.19) | 26 (26.53) | 0.053 | 0.741 |
 Osteoporosis, n (%) | 17 (27.42) | 21 (21.43) | 0.140 | 0.386 |
Decompression method | Â | Â | 0.096 | 0.551 |
 Unilateral decompression | 39 (62.90) | 57 (58.16) |  |  |
 Bilateral decompression | 23 (37.10) | 41 (41.84) |  |  |
VAS-LP score | 7.08 ± 1.01 | 7.32 ± 1.07 | 0.228 | 0.169 |
VAS-BP score | 5.23 ± 1.06 | 5.28 ± 1.16 | 0.045 | 0.771 |
JOA score | 12.03 ± 1.38 | 11.89 ± 1.43 | 0.100 | 0.480 |
ODI index | 60.19 ± 10.39 | 61.39 ± 11.63 | 0.108 | 0.511 |
Responsible segment, n (%) | Â | Â | 0.088 | 0.586 |
 L4-5 | 35 (56.45) | 51 (52.04) |  |  |
 L5-S1 | 27 (43.55) | 47 (47.96) |  |  |
Smoking, n (%) | 11 (17.74) | 33 (33.67) | 0.356 | 0.028 |