The study investigated serum 25-Hydroxy vitamin D (25-(OH)D) deficiency and its prognostic values of patients newly diagnosed Hodgkin lymphoma (HL). With seventy-seven patients enrolled, the median level of 25-(OH)D was 44.5 nmol/L (range, 15.5-100.9 nmol/L) and 16 (20.8 %) of them were considered as 25-(OH)D deficiency. With a median follow-up of 28 months (range, 4-56 months), the 2-year progression-free survival (PFS) and overall survival (OS) rate were 75.3 %±5.5 % and 94.7 %±3.0 %, respectively. Patients with deficient 25-(OH)D level had inferior PFS (P<0.001) as well as OS (P<0.001). In multivariate Cox analysis, 25-(OH)D deficiency was observed as an independent prognostic factor for both PFS (hazard ratio (HR) 3.323, 95 % CI 1.527-7.229, P = 0.002) and OS (HR 5.819, 95 % CI 1.322-25.622, P = 0.020). Receiver-operator characteristic (ROC) curve showed International Prognostic Score (IPS) plus 25-(OH)D deficiency (IPS-D) predicted more accurately than IPS in PFS (AUC: 0.735 (95 % CI 0.622-0.829) vs. 0.701 (95 % CI 0.586-0.800), P = 0.033) and OS (AUC: 0.864 (95 % CI 0.767-0.932) vs. 0.825 (95 % CI 0.722-0.902), P = 0.028). All these findings suggest that serum 25-(OH)D level may be an adjunctive indicator to predict prognosis in HL patient.
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