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Table 1 Demographic and laboratory data of of patients requiring spinal surgery

From: A retrospective analysis of bone mineral status in patients requiring spinal surgery

  Mean (± SD) or n (%)
n 144
Sex (no. of female, %) 96 (66.4)
Mean age in yr 70.1 (8.1)
Age (no. of patients)
 50–60 yr 18 (12.5%)
 60–70 yr 55 (38.2%)
  > 70 yr 71 (49.3%)
Weight (kg) 74.8 (14.4)
Height (cm) 168.0 (9.4)
Height change (cm) 3.7 (2.9)
Mean BMI (± SD) 26.2 (4.7)
History of a vertebral fracture 42 (29.1%)
Unknown vertebral deformity (Diagnosed by VFA) 12 (8.3%)
Proton pump inhibitor use 44 (30.6%)
Laboratory values
 25-OH-D (ng/ml) 24.3 (11.8)
 Parathyroid hormone (ng/l) 84.3 (47.1)
 Calcium (mmol/l) 2.23 (0.1)
 Bone specific AP (μg/l) (n = 115) 13.6 (7.9)
 Osteocalcin (μg/l) (n = 111) 18.9 (11.8)
 Urine DPD (n = 107) 6.7 (2.8)
 Elevated DPD 74 (69.2%)
 Elevated Gastrin 20 (13.9%)