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Table 2 Comparison of the outcome variables 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
Operation time (min.) median, [IQR] 214.0 [100.0] 237.0 [130.5] 0.4193
Intraoperative blood loss (ml) median, [IQR] 450.0 [627.0] 402.0 [575.5] 0.2761
Perioperative complication [complication/ no complication] (N of patients) 10/16 45/251 0.0063
Local kyphosis angle (°) median, [IQR]
 Preop. 27.0 [21.0] 26.0 [19.0] 0.9965
 Postop. 6.0 [18.0] 8.0 [13.4] 0.8072
 Final 18.7 [18.0] 14.0 [18.0] 0.3357
 Amount of kyphosis correction 10.8 [26.1] 10.0 [16.0] 0.6611
 Mechanical failure (%) 26.9 17.9 0.7464
 JOA score improvement rate (%) median, [IQR] 50.0 [38.5] 53.8 [39.2] 0.1074
Walking ability (N of patients)
 Preop. Grade1: 2 Grade1: 16 0.1030
Grade 2: 1 Grade 2: 44
Grade 3: 4 Grade 3: 86
Grade 4: 19 Grade 4: 150
 Final Grade1: 3 Grade1: 114 0.0007
Grade 2: 5 Grade 2: 92
Grade 3: 12 Grade 3: 70
Grade 4: 6 Grade 4: 19
 Subsequent vertebral fracture (%) 38.4 35.1 0.7338
  1. Abbreviation: N number, IQR interquartile range, JOA score, Japanese Orthopaedic Association scoring system