Abstract
Introduction: Multivitamins (MVT) are used for their potential benefit by patients diagnosed with cancer. There is a paucity of data correlating their use and outcomes in rarer malignancies. Thus, the aim of this study was to correlate MVT use with survival in patients with soft tissue sarcomas (STS). Materials and methods: Between 2000-2012, 185 patients with stage I-III STS underwent treatment. Variables were retrospectively analyzed relating to overall (OS), disease-free (DFS), and distant-metastasis free survival (DMFS). Univariate analysis (UVA) was performed using the log-rank test. Multivariate analysis (MVA) was performed using the Cox proportional hazards model. Results: Median follow-up was 3.6 years. 34% had record of taking a MVT at the time of diagnosis. Of these, 10% developed metastasis compared to 39% who were not taking a MVT at the time of their diagnosis. On UVA, MVT was associated with an improved DFS (p=0.001) and DMFS (p=0.001). On MVA for DFS and DMFS, smoking (p<0.01), stage III tumors (p<0.01), and statin use (p<0.01) were negative predictors, however MVT use (p<0.001 was associated with improved DFS and DMFS. Conclusions: Patients taking a MVT at the time of diagnosis had improved DFS and DMFS in our cohort. This may suggest that MVT use prevents distant metastasis.
Highlights
Multivitamins (MVT) are used for their potential benefit by patients diagnosed with cancer
On Univariate analysis (UVA), MVT was associated with an improved DFS (p=0.001) and distant-metastasis free survival (DMFS) (p=0.001)
On Multivariate analysis (MVA) for DFS and DMFS, smoking (p
Summary
Multivitamins (MVT) are used for their potential benefit by patients diagnosed with cancer. There is a paucity of data correlating their use and outcomes in rarer malignancies. The aim of this study was to correlate MVT use with survival in patients with soft tissue sarcomas (STS). There is little objective research documenting the decreasing the risk of recurrence and improving outcomes in patients with soft tissue sarcomas (STS) or other rare malignancies. Multivitamins (MVTs) are the most common dietary supplement used in the United States, with a reported 33% of the US population using multivitamins-multi-mineral dietary supplements, and 14% to 32% of adults using supplements after a cancer diagnosis [1]. Advantages of MVTs include inhibition of cell proliferation, apoptosis, and angiogenesis [1,2], there has been a paucity of data correlating MVTs or multi-minerals supplement use of outcomes including control and survival of disease. Vitamin D intake has been shown in some studies to be beneficial in patients with
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