• Title/Summary/Keyword: various multivariate statistical methods

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Salvage Treatment Experience in Advanced Synovial Sarcoma: a Multicenter Retrospective Analysis of the Anatolian Society of Medical Oncology

  • Yetisyigit, Tarkan;Arpaci, Erkan;Seber, Erdogan Selcuk;Kucukoner, Mehmet;Kos, Fatma Tugba;Sonmez, Ozlem Uysal;Alici, Suleyman;Akman, Tulay;Aktas, Bilge;Yildiz, Ramazan;Gunaydin, Yusuf;Inanc, Mevlude;Demirci, Umut;Alkis, Necati;Gumus, Mahmut
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.9
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    • pp.5185-5188
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    • 2013
  • Background: We aimed to evaluate prognostic factors and response rates to various treatment approaches to patients with synovial sarcoma in an advanced setting. Materials and Methods: We retrospectively reviewed the medical records of 55 patients (18 pts; 32.7% women) diagnosed with synovial sarcomas. Twenty had metastatic disease at the time of diagnosis while the remainder of the study group consisted of patients who developed metastatic or inoperable locally advanced disease during follow up. Results: The median follow up time was 15 months (range: 1-53). Regarding outcomes for the 55 patients, 3 and 5 year overall survival rates were 26% and 14%, respectively. In univariate analyses among demographic factors female gender was associated with a better outcome (p=0.030). Patients with early progressing disease (<2 years) had a worse prognosis when compared to patient group with late relapse, but this difference did not reach statistical significance (p=0.056). According to multivariate Cox regression analysis patients who had undergone metastasectomy had a significant survival advantage (p=0.044). The overall response rate to different salvage chemotherapy regimens given as second line treatment was around 42.9-53.9% for all regimes. There were no statistically significant differences between chemotherapy regimens given in either second or third line settings in terms of overall survival. Conclusions: We observed no major differences in terms of response rate and survival between different salvage chemotherapy regimens. Although metastatic disease still carries a poor prognosis, metastasectomy was found to be associated with improved survival.

Factors Related to Serum Vitamin C Level in Terminally Ill Cancer Patients (말기암환자에서 혈청 비타민 C 농도와 연관된 인자들)

  • Kim, Hyung Jun;Hwang, In Cheol;Yeom, Chang Hwan;Ahn, Hong Yup;Choi, Youn Seon;Lee, Jae Jun;Lim, Su Hyuk
    • Journal of Hospice and Palliative Care
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    • v.17 no.4
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    • pp.241-247
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    • 2014
  • Purpose: Serum vitamin C is one of the indicators for antioxidant levels in the body and it is lower in cancer patients compared with the healthy population. However, there have been few studies on the levels of serum vitamin C in terminally ill cancer patients and related factors. Methods: We followed 65 terminal cancer patients who were hospitalized in two palliative care units. We collected data of age, sex, cancer type, functional status, clinical symptoms, history of cancer therapy, and various laboratory findings including serum vitamin C level. Patients were categorized into two groups according to the quartile of serum vitamin C level (Q1-3 vs. Q4), which were compared each other. Stepwise multiple logistic regression analysis was used to identify factors related to serum vitamin C levels. Results: The mean serum vitamin C level was $0.44{\mu}g/mL$, and all patients fell into the category of vitamin C deficiency. Univariate analysis showed that The serum vitamin C level was lower in non-lung cancer patients (P=0.041) and febrile patients (P=0.034). Multivariate analysis adjusted for potential confounders such as lung cancer, fever, dysphagia, dyspnea, C reactive protein, and history of chemotherapy demonstrated that odds for low serum vitamin C level was 3.7 for patients receiving chemotherapy (P=0.046) and 7.22 for febrile patients (P=0.02). Conclusion: Vitamin C deficiency was very severe in terminally ill cancer patients, and it was associated with history of chemotherapy and fever.