Blood AdvancesImpact of Vitamin D Level at Diagnosis and Transplantation on the Prognosis of Hematological Malignancy

This meta-analysis examined 1,212 published articles and abstracts, of which the 30 fulfilling their criteria were analyzed to evaluate the effect of vitamin D levels on OS, PFS, and secondarily on time to treatment, relapse rate, and non-relapse mortality in patients with hematologic malignancies. Lower vitamin D level at diagnosis was related to a significantly impaired prognosis for myeloid and lymphoid malignancies, as previously reported.