Table 2 Serum variables of the study groups at the baseline and the end of intervention. The groups were compared using general linear model (GLM) with generalized estimating equations (GEE) approach
Study groups | Time effect | Group effect | ||||||
|---|---|---|---|---|---|---|---|---|
2000 IU/daily | 50,000 IU/weekly | β† (95% CI) | p- value | β (95% CI) | p- value | |||
Before | After | Before | After | |||||
25(OH)D (ng/mL) | 16.24 (3.05) | 24.82 (7.75) | 16.09 (3.50) | 31.88 (8.85) | 12.53 (10.26, 14.80) | < 0.001*** | 3.46 (1.21, 5.70) | 0.003** |
PTH (pg/mL) | 56.23 (16.93) | 48.84 (16.15) | 54.35 (19.22) | 47.37 (15.80) | − 7.16 (− 10.23, − 4.08) | < 0.001*** | 3.98 (− 9.48, 6.13) | 0.675 |
Calcium (mg/dl) | 9.31 (0.32) | 9.51 (0.48) | 9.34 (0.45) | 9.38 (0.42) | 0.11 (− 0.02, 0.25) | 0.112 | − 0.05 (-.20, 0.10) | 0.516 |
Phosphate (mg/dl) | 3.25 (0.52) | 3.47 (0.74) | 3.35 (0.54) | 3.56 (0.49) | 0.21 (0.02, 0.41) | 0.025* | 0.10 (− 0.10, 0.30) | 0.345 |
Creatinine (mg/dl) | 1.12 (0.24) | 1.07 (0.16) | 1.10 (0.20) | 1.12 (0.18) | − 0.009 (− 0.05, 0.03) | 0.690 | 0.01 (− 0.07, 0.10) | 0.743 |