Table 2.
Values of vertebral height ratios defined by various cutoffs
| Ha/Hp (%) | Hm/Hp (%) | Hp/Hp+1 (%) | Hp/Hp−1 (%) | Ha/Hp (%) | Hm/Hp (%) | Hp/Hp+1 (%) | Hp/Hp−1 (%) | |
|---|---|---|---|---|---|---|---|---|
| 3 SD below mean (−3 SD) | 3.5 SD below mean (−3.5 SD) | |||||||
| T4 | 80.1 | 76.0 | 77.2 | Null | 77.6 | 73.4 | 73.9 | Null |
| T5 | 78.6 | 76.0 | 83.7 | 82.4 | 76.1 | 73.9 | 81.6 | 78.9 |
| T6 | 77.3 | 72.8 | 83.5 | 89.9 | 74.7 | 70.2 | 81.0 | 87.6 |
| T7 | 76.9 | 74.9 | 83.8 | 86.0 | 74.4 | 72.7 | 81.3 | 83.4 |
| T8 | 74.6 | 73.7 | 83.5 | 86.2 | 71.4 | 71.2 | 81.3 | 83.7 |
| T9 | 78.9 | 74.0 | 75.9 | 89.2 | 76.1 | 71.5 | 73.0 | 86.8 |
| T10 | 78.3 | 74.4 | 76.8 | 87.2 | 75.4 | 71.7 | 74.1 | 83.9 |
| T11 | 76.0 | 71.7 | 73.2 | 88.6 | 73.1 | 68.7 | 70.0 | 85.4 |
| T12 | 77.9 | 78.7 | 80.1 | 85.8 | 75.4 | 76.4 | 77.6 | 82.0 |
| L1 | 76.6 | 79.4 | 82.1 | 88.8 | 73.7 | 77.0 | 79.6 | 86.0 |
| L2 | 77.9 | 79.8 | 82.4 | 87.8 | 74.7 | 77.4 | 79.7 | 85.2 |
| L3 | 80.5 | 81.7 | 90.5 | 84.1 | 77.5 | 79.5 | 88.0 | 81.2 |
| L4 | 84.8 | 81.7 | 87.6 | 81.3 | 81.8 | 79.3 | 84.3 | 79.0 |
| L5 | 81.3 | 77.0 | Null | 77.0 | 76.7 | 73.4 | Null | 74.2 |
| 15% below mean (−15%) | 20% below mean (20%) | |||||||
| T4 | 80.8 | 77.5 | 82.5 | Null | 76.1 | 73.0 | 77.7 | Null |
| T5 | 79.5 | 75.7 | 82.0 | 88.0 | 74.9 | 71.3 | 77.2 | 82.8 |
| T6 | 78.7 | 75.3 | 83.6 | 88.3 | 74.0 | 70.9 | 78.7 | 83.1 |
| T7 | 78.1 | 75.3 | 84.0 | 86.5 | 73.5 | 70.9 | 79.0 | 81.4 |
| T8 | 79.5 | 75.5 | 82.1 | 86.1 | 74.8 | 71.0 | 77.3 | 81.0 |
| T9 | 81.4 | 75.7 | 79.8 | 88.1 | 76.6 | 71.3 | 75.1 | 83.0 |
| T10 | 81.2 | 76.8 | 79.1 | 90.9 | 76.5 | 72.3 | 74.5 | 85.5 |
| T11 | 79.3 | 76.4 | 78.8 | 91.6 | 74.6 | 71.9 | 74.1 | 86.2 |
| T12 | 79.2 | 78.4 | 80.9 | 92.2 | 74.5 | 73.8 | 76.2 | 86.7 |
| L1 | 80.1 | 79.8 | 82.3 | 89.5 | 75.4 | 75.1 | 77.5 | 84.2 |
| L2 | 82.5 | 79.8 | 84.1 | 88.0 | 77.7 | 75.1 | 79.2 | 82.8 |
| L3 | 84.1 | 80.7 | 89.7 | 86.1 | 79.2 | 75.9 | 84.4 | 81.1 |
| L4 | 87.7 | 81.8 | 91.0 | 80.8 | 82.6 | 77.0 | 85.7 | 76.0 |
| L5 | 92.6 | 83.9 | Null | 79.7 | 87.2 | 78.9 | Null | 75.0 |
Highlighted VH ratios defined by −3 SD and −3.5 SD cutoffs are lower than those defined by −20% cutoff