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Does Sunlight Exposure Improve Survival in Patients with Non-small Cell Lung Cancer?

  • Mutlu, Hasan (Department of Medical Oncology, Acibadem Kayseri Hospital) ;
  • Buyukcelik, Abdullah (Department of Internal Medicine, Acibadem University School of Medicine) ;
  • Aksahin, Arzu (Department of Medical Oncology, Kayseri Research and Training Hospital) ;
  • Kibar, Mustafa (Department of Nuclear Medicine, Acibadem Adana Hospital) ;
  • Cihan, Yasemin Benderli (Department of Radiation Oncology, Kayseri Research and Training Hospital) ;
  • Kaya, Eser (Department of Nuclear Medicine, Acibadem Kayseri Hospital) ;
  • Seyrek, Ertugrul (Department of Medical Oncology, Acibadem Adana Hospital) ;
  • Yavuz, Sinan (Department of Internal Medicine, Acibadem University School of Medicine) ;
  • Erden, Abdulsamet (Department of Internal Medicine, Kayseri Research and Training Hospital) ;
  • Calikusu, Zuleyha (Department of Medical Oncology, Acibadem Adana Hospital) ;
  • Aslan, Tuncay (Department of Internal Medicine, Kayseri Research and Training Hospital) ;
  • Akca, Zeki (Department of Radiation Oncology, Mersin Government Hospital)
  • Published : 2013.11.30

Abstract

Background: Some epidemiological studies reported that sunlight exposure and highvitamin D levels may decrease the morbidity and mortality related to cancer. We aimed to evaluate whether sunlight exposure has an impact on survival in patients with non small cell lung cancer. Materials and Methods: A total of 546 patients with NSCLC from two different regions (Kayseri and Adana) differing according to sunlight exposure were analysed retrospectively. Results: The median overall survival (OS) rates were 11. 6 (CI: 9.50-13.6) and 15.6 months (CI: 12.4-18.8) for Kayseri and Adana, respectively, in all patients (p=0.880). Conclusions: There were no differences between groups in terms of OS. While there is strong evidence regarding inverse relationship between cancer incidence and sunlight exposure, it is still controversial whether sunlight exposure is a good prognostic factor for survival in patients with lung cancer.

Keywords

Lung cancer;sunlight;survival;season

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