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

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