Correlates of total body BMD (g/cm2)
| Total no. subjects | Correlation coefficient (R) | p value | |
| Age (y) | 22 | −0.29 | 0.20 |
| FEV1(l/s) | 22 | −0.02 | 0.92 |
| Serum calcium (mg/ml) | 21 | −0.27 | 0.22 |
| Serum phosphate (mg/ml) | 21 | −0.50 | 0.03 |
| Serum alkaline phosphatase (IU/ml) | 20 | 0.17 | 0.45 |
| Serum 25(OH) vitamin D (nmol/l) | 13 | −0.25 | 0.41 |
| Energy intake (J/day) | 21 | 0.07 | 0.75 |
| Calcium intake (mg/day) | 21 | 0.16 | 0.49 |
| 25(OH) vitamin D intake (IU/day) | 21 | 0.07 | 0.75 |
| Physical activity (J/day) | 22 | 0.36 | 0.11 |
| DEXA FFST (g) | 22 | 0.15 | 0.50 |
| Height (cm) | 22 | 0.02 | 0.95 |
| Weight (kg) | 22 | 0.24 | 0.27 |
| BMI (kg/m2) | 22 | 0.40 | 0.07 |