Treatment effect on several serum markers of vitamin D metabolism
| Pre vitamin D3 | Post vitamin D3 | p Value: previtamin D3 versus postvitamin D3* | Preplacebo | Postplacebo | p Value: preplacibo versus postplacebo* | p Value: previtamin D3 versus preplacebo† | |
| 25(OH)D3 (ng/mL) | 29.9 (11.8) | 34.38 (9.5) | 0.0461 | 32.4 (18.1) | 33.47 (19.3) | 0.5415 | 0.6013 |
| 1,25(OH)2D3 (pg/mL) | 51.6 (21.4) | 44.3 (16.8) | 0.1705 | 48.7 (21.5) | 50.95 (18.2) | 0.6319 | 0.6678 |
| Calcium (mg/dL) | 9.12 (0.33) | 9.21 (0.32) | 0.3817 | 9.05 (0.38) | 9.04 (0.33) | 0.9489 | 0.5285 |
| Parathyroid Hormone (pg/mL) | 37.01 (14.5) | 38 (12) | 0.7232 | 34.02 (8.6) | 41.01 (15.4) | 0.1970 | 0.4391 |
Data expressed as mean and SD.
*Compared by ratio paired t-test.
†Compared by unpaired t-test.