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Table 1 Comparison of demographic data between the 2 groups

From: Surgical outcomes of spinal fusion for osteoporotic thoracolumbar vertebral fractures in patients with Parkinson’s disease: what is the impact of Parkinson’s disease on surgical outcome?

  PD group Non-PD group p value
N of patients 26 296
Age at operation (years) median, [IQR] 76.0 [8.0] 75.0 [10.8] 0.3343
Sex [male/female] (N of patients) 3/23 66/230 0.1999
BMI (kg/m2) median, [IQR] 22.1 [6.3] 22.5 [4.7] 0.1600
Vertebral level (N of patients) T11: 3 T10: 16 0.6112
T12: 8 T11: 25
L1: 11 T12: 116
L2: 4 L1: 103
  L2: 36
Surgical procedure (N of patients) APSF: 2 ASF: 19 0.7176
PSF: 3 APSF: 27
3CO: 9 PSF: 37
VP + PSF: 12 3CO: 84
VP + PSF: 129
Number of fused segment (segment) median, [IQR] 4.0 [2.0] 4.0 [2.0] 0.9534
BMD YAM (%) median, [IQR] 73.0 [25.0] 69.0 [19.8] 0.9295
Number of patients with existing vertebral fracture [fx/no fx] (N of patients) 8/18 108/188 0.7338
Number of comorbidity (disease) median, [IQR] 1.0 [0.0] 1.0 [1.0] < 0.0001
Follow-up period (month) median, [IQR] 37.0 [19.0] 44.0 [28.0] 0.1787
  1. Abbreviation: N number, IQR interquartile range, BMI body mass index, ASF anterior spinal fusion, APSF combined anterior and posterior spinal fusion, PSF posterior spinal fusion, 3CO 3 column osteotomy, VP + PSF vertebroplasty with PSF, BMD bone mineral density, YAM young adult mean, fx fracture