At 30 days post HSCT, serum levels of 25(OH)D were 22.7
± 10.7 ng/mL, and no statistically significant difference was
found in comparison to baseline (Figure 2). Sub-optimal
levels of 25(OH)D were observed in 80% of the patients, with
38.2% showing vitamin D insufficiency and 41.8% vitamin
D deficiency. There was no difference in 25(OH)D levels