Skip to main content

Table 5 Sensitivity, specificity, and cut-off values of factors predictive of adjacent vertebral fracture

From: Risk factors of adjacent vertebral collapse after percutaneous vertebroplasty for osteoporotic vertebral fracture in postmenopausal women

Parameter Sensitivity (%) Specificity (%) LR+ LR-
Age (years)     
 ≥75 100 30 1.42 0.00
 ≥ 80 79 70 2.63 0.30
 ≥ 85 57 83 3.35 0.51
 85 and over 21 96 5.03 0.82
L2–4 BMD (g/cm2)     
 < 0.600 [−3.5SD] 29 94 4.47 0.76
 < 0.700 [−2.6SD] 86 83 5.03 0.17
 < 0.800 [−1.8SD] 100 34 1.51 0.00
 < 0.900 [−0.9SD] 100 11 1.11 0.00
Total BMD (g/cm2)     
 < 0.600 [−2.8SD] 29 100 0.71
 < 0.700 [−1.8SD] 43 98 20.1 0.58
 < 0.800 [−0.8SD] 93 53 1.98 0.13
 < 0.900 [+0.3SD] 100 9 1.09 0.00
Neck BMD (g/cm2)     
 < 0.600 [−2.1SD] 36 98 16.78 0.65
 < 0.700 [−1.0SD] 71 74 2.79 0.38
 < 0.800 [+0.1SD] 100 28 1.38 0.00
 < 0.900 [+1.2SD] 100 6 1.06 0.00
Troch BMD (g/cm2)     
 <0.600 [-] 50 96 11.75 0.52
 <0.700 [-] 100 51 2.04 0.00
 <0.800 [-] 100 21 1.27 0.00
 <0.900 [-] 100 4 1.04 0.00
  1. Abbreviations: BMD bone mineral density, LR+ positive likelihood ratio, LR- negative likelihood ratio. SD values were calculated according to the Japanese Orthopaedic Diagnostic Guidelines using cut-off values based on Japanese patients. The SD of trochanteric BMD could not be calculated since there are no established values in Japan
  2. ∞: infinity