Table 2.
Differences in DXA outcomes between ethnic groups.
| Mean ± SD |
Group differences (p-values) |
|||||
|---|---|---|---|---|---|---|
| White (n = 235) | Black (n = 44) | South Asian (n = 64) | White vs Black | White vs South Asian | South Asian vs Black | |
| Whole body aBMD (g/cm2) | ||||||
| Unadjusted | 1.16 ± 0.11 | 1.23 ± 0.13 | 1.11 ± 0.08 | 0.001 | 0.002 | < 0.0001 |
| Adjusted | 1.15 ± 0.11 | 1.23 ± 0.11 | 1.12 ± 0.11 | < 0.0001 | 0.09 | < 0.0001 |
| Total Hip aBMD (g/cm2) | ||||||
| Unadjusted | 1.02 ± 0.15 | 1.15 ± 0.17 | 1.03 ± 0.13 | < 0.0001 | 1.00 | < 0.0001 |
| Adjusted | 1.02 ± 0.14 | 1.15 ± 0.13 | 1.05 ± 0.14 | < 0.0001 | 0.41 | 0.001 |
| Femoral neck aBMD (g/cm2) | ||||||
| Unadjusted | 0.82 ± 0.13 | 0.93 ± 0.16 | 0.84 ± 0.12 | < 0.0001 | 0.78 | 0.002 |
| Adjusted | 0.81 ± 0.13 | 0.93 ± 0.13 | 0.85 ± 0.13 | < 0.0001 | 0.10 | 0.01 |
| Lumbar spine aBMD (g/cm2) | ||||||
| Unadjusted | 1.10 ± 0.22 | 1.14 ± 0.18 | 1.04 ± 0.15 | 0.84 | 0.10 | 0.04 |
| Adjusted | 1.09 ± 0.20 | 1.15 ± 0.19 | 1.07 ± 0.20 | 0.26 | 1.00 | 0.19 |
All values are mean ± SD. Adjusted mean ± SD from a linear regression model with adjustments for age (yr), weight (kg) and height (cm), bold indicates p < 0.05.