Table 2.
ACE models.
| Measure | rMZ | rDZ | A | C | E | Model Fit |
|---|---|---|---|---|---|---|
| LUMBAR BMD | 0.834 (0.73 0.9) |
0.304 (0.007 0.553) |
0.828 (0.726, 0.89) |
0 | 0.172 (0.11, 0.274) |
1 |
| LUMBAR Z SCORE | 0.828 (0.724 0.896) |
0.325 (0.036 0.564) |
0.828 (0.728, 0.889) |
0 | 0.172 (0.111, 0.272) |
1 |
| LUMBAR T SCORE | 0.824 (0.695 0.901) |
0.291 (−0.044 0.568) |
0.806 (0.676, 0.882) |
0 | 0.194 (0.118, 0.324) |
0.950 |
| FEMORAL NECK BMD | 0.679 (0.507 0.798) |
0.066 (−0.236 0.357) |
0.669 (0.511, 0.779) |
0 | 0.378 (0.253, 0.554) |
1 |
| FEMORAL NECK Z SCORE | 0.715 (0.557 0.822) |
0.162 (−0.139 0.437) |
0.656 (0.492, 0.77) |
0 | 0.331 (0.221, 0.489) |
1 |
| FEMORAL NECK T SCORE | 0.665 (0.466 0.8) |
0.054 (−0.284 0.38) |
0.613 (0.409, 0.754) |
0 | 0.387 (0.246, 0.591) |
1 |
| TOTAL HIP BMD | 0.659 (0.469 0.787) |
0.29 2 (−0.007 0.543) |
0.653 (0.477, 0.773) |
0 | 0.347 (0.227, 0.523) |
1 |
| TOTAL HIP Z SCORE | 0.696 (0.53 0.81) |
0.318 (0.026 0.56) |
0.705 (0.548, 0.809) |
0 | 0.295 (0.191, 0.452) |
1 |
| TOTAL HIP T SCORE | 0.654 (0.446 0.795) |
0.25 (−0.088 0.537) |
0.664 (0.462, 0.794) |
0 | 0.336 (0.206, 0.538) |
1 |
| RADIUS BMD | 0.795 (0.671 0.874) |
0.375 (0.086 0.606) |
0.806 (0.694, 0.875) |
0 | 0.194 (0.125, 0.306) |
1 |
| RADIUS Z SCORE | 0.73 (0.58 0.831) |
0.452 (0.183 0.658) |
0.737 (0.606, 0.825) |
0 | 0.263 (0.175, 0.394) |
0.557 |
| RADIUS T SCORE | 0.742 (0.575 0.85) |
0.391 (0.073 0.637) |
0.761 (0.611, 0.853) |
0 | 0.239 (0.147, 0.389) |
1 |
| CALCANEUS eBMD ⸸ | 0.834 (0.721 0.902) |
0.564 (0.319 0.739) |
0.838 (0.742, 0.896) |
0 | 0.162 (0.104, 0.258) |
0.259 |
| CALCANEUS eBMD T SCORE ⸸ | 0.853 (0.739 0.917) |
0.596 (0.335 0.771) |
0.838 (0.735, 0.899) |
0 | 0.162 (0.101, 0.265) |
0.182 |
95% confidence interval included in parenthesis. Model fit refers to the p-value of the chi-square test of the model, compared to the base ACE model. Here the best models are included, based on Akaike information criteria comparisons. rMZ: intrapair correlation in monozygotic twins, rDZ: intrapair correlation in dizygotic twins, A: additive genetic effects, C: common environment, E: unique environment, ⸸: variables determined by ultrasound technique.