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Table 2 Characteristics of patients divided by axial ossification type and sagittal ossification type

From: The influence of ossification morphology on surgery outcomes in patients with thoracic ossification of ligamentum flavum (TOLF)

  Unilateral Bilateral Bridged P value Beak Round P value
No. of patients 14 18 16 19 29
Sex        
Male 8 12 9 0.789 10 19 0.372
Female 6 6 7   9 10  
Age, mean ± SD, years 60.5 ± 11.26 56.83 ± 7.12 58.19 ± 9.91 0.552 61.47 ± 7.63 56.31 ± 9.89 0.060
Symptom duration, Q50 (Q25, Q75), month 6.5 (1.875, 36) 10 (2, 36) 6 (2.25, 22.75) 0.719 12 (2, 36) 6 (2, 18) 0.380
Heart disease, no. (%) 4 (28.6) 5 (27.8) 5 (31.3) 1.000 6 (31.6) 8 (27.6) 0.766
Diabetes, no. (%) 2 (14.3) 2 (11.1) 1 (6.3) 0.850 3 (15.8) 2 (6.9) 0.615
Hypertension, no. (%) 6 (42.9) 7 (38.9) 4 (25.0) 0.551 7 (36.8) 10 (34.5) 0.867
Bowel or bladder symptoms, no. (%) 5 (35.7) 9 (50.0) 6 (37.5) 0.659 9 (47.4) 11 (37.9) 0.517
  1. SD standard deviation