Table 2.
The relationships between the calcaneal BMD and MI in the subject groups
| T-score group | n | Calcaneal T-score dependence on MI | Calcaneal BMD (g cm−2) dependence on MI |
| T1 | 34 | r = 0.2; p = 0.4 | r = 0.2; p = 0.4 |
| T2 | 65 | r = 0.2; p = 0.3 | r = 0.2; p = 0.2 |
| T3 | 30 | r = 0.1; p = 0.8 | r = 0.1; p = 1.0 |
| Total | 129 | r = 0.4; p < 0.001 | r = 0.4; p < 0.001 |
BMD, bone mineral density; MI, mental index; T1, subjects with normal BMD (T-score > −1); T2, subjects with osteopaenia (−1 ≥ T-score > −2.5); T3, subjects with osteoporosis (T-score ≤ −2.5).