TABLE 2.
Adjusted mean BMD at hip and spine sites across dietary Ca:Mg tertiles among Puerto Rican adults (n = 888)1
| BMD at spine and hip sites | Calcium-to-magnesium intake ratio (Ca:Mg) |
||
|---|---|---|---|
| Tertile 1 (n = 296) |
Tertile 2 (n = 296) |
Tertile 3 (n = 296) |
|
| Mean ± SD | Mean ± SD | Mean ± SD | |
| Lumbar spine (L2–L4) BMD (g/cm2) | |||
| Model 1 | 1.180 ± 0.015 | 1.204 ± 0.015 | 1.172 ± 0.015 |
| Model 2 | 1.180 ± 0.015 | 1.210 ± 0.015 | 1.172 ± 0.015 |
| Model 3 | 1.190 ± 0.016 | 1.211 ± 0.0151 | 1.170 ± 0.0162 |
| Model 4 | 1.170 ± 0.018 | 1.204 ± 0.015 | 1.180 ± 0.018 |
| Femoral neck BMD (g/cm2) | |||
| Model 1 | 0.940 ± 0.011 | 0.971 ± 0.0112 | 0.938 ± 0.0111 |
| Model 2 | 0.940 ± 0.011 | 0.972 ± 0.0112 | 0.939 ± 0.011 |
| Model 3 | 0.943 ± 0.0121 | 0.972 ± 0.0112 | 0.936 ± 0.0121 |
| Model 4 | 0.936 ± 0.0131 | 0.971 ± 0.0112 | 0.943 ± 0.013 |
| Trochanter BMD (g/cm2) | |||
| Model 1 | 0.830 ± 0.011 | 0.858 ± 0.0112 | 0.833 ± 0.0111 |
| Model 2 | 0.830 ± 0.011 | 0.859 ± 0.0112 | 0.833 ± 0.0111 |
| Model 3 | 0.836 ± 0.011 | 0.86 ± 0.0112 | 0.827 ± 0.0111 |
| Model 4 | 0.825 ± 0.0131 | 0.858 ± 0.0112 | 0.838 ± 0.013 |
| Total hip BMD (g/cm2) | |||
| Model 1 | 1.025 ± 0.0111 | 1.062 ± 0.0122 | 1.025 ± 0.0121 |
| Model 2 | 1.026 ± 0.0111 | 1.063 ± 0.0122 | 1.031 ± 0.0121 |
| Model 3 | 1.032 ± 0.0131 | 1.063 ± 0.0122 | 1.020 ± 0.0131 |
| Model 4 | 1.017 ± 0.0141 | 1.061 ± 0.0122 | 1.033 ± 0.014 |
1
Means with different superscript numbers are significantly different. Model 1 was adjusted for age, sex/estrogen status, height, BMI, smoking status, serum vitamin D concentration, alcohol intake, use of calcium supplements, and use of magnesium supplements. Model 2 was adjusted for model 1 plus dietary magnesium. Model 3 was adjusted for model 1 plus dietary calcium. Model 4 was adjusted for model 1 plus dietary calcium and dietary magnesium.