Table 2.
Comparison of metabolic characteristics between the control and type 1 diabetes groups
| Variable | Control (n=29) | Type 1 diabetes (n=42) | P-value |
|---|---|---|---|
| 25(OH)D deficiency | 13 (44.8) | 24 (57.1) | 0.307 |
| 25(OH)D (ng/mL) | 21.3±6.0 | 20.0±6.4 | 0.426 |
| Serum VDBP (μg/mL)* | 175.0±84.6 | 200.8±75.2 | 0.108 |
| Urine VDBP (ng/mL)* | 34.0±31.0 | 48.2±35.9 | 0.127 |
| Urine VDBP/Cr (ng/mg)* | 55.4±49.3 | 72.6±53.3 | 0.305 |
| Urine microalbumin/Cr (mg/g)* | 11.1±7.5 | 14.0±6.2 | 0.012 |
| Total calcium (mg/dL) | 9.6±0.4 | 9.6±0.3 | 0.920 |
| Phosphorus (mg/dL) | 4.9±0.5 | 5.0±0.8 | 0.545 |
| Alkaline phosphatase (IU/L) | 224.7±73.4 | 249.2±107.5 | 0.257 |
| Parathyroid hormone (pg/mL) | 22.7±12.7 | 22.3±11.4 | 0.902 |
Values are presented as number (%) or mean±standard deviation.
25(OH)D, 25-hydroxyvitamin D; VDBP, vitamin D-binding protein; Cr, creatinine.
*
Natural log transformed values were used for the analysis.