Characteristic | Mean ± SD | |
---|---|---|
Case | Control | |
Number | 105 | 401 |
Male/female | 52/53 | 251/150 |
Age (years) | 1.77 ± 1.07 | 7.17 ± 3.89△ |
BMI (kg/m2) | 18.43 ± 4.21 | 18.14 ± 3.37 |
Calcium (mmol/L) | 2.33 ± 0.16 | 2.42 ± 0.13△ |
Phosphate (mmol/L) | 1.69 ± 0.24 | 1.67 ± 0.19 |
Alkaline phosphatase (IU/L) | 207.33 ± 54.64 | 231.72 ± 69.52△ |
Serum 25(OH)D (ng/ml)a | 11.82 ± 6.95 | 23.58 ± 8.20△ |
Regular vitamin D useb | ||
Yes | 19 | 193△ |
No | 86 | 208 |