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Survival Rate of Breast Cancer in Iran: A Meta-Analysis

  • Abedi, Ghasem (Health Sciences Research Center, Mazandaran University of Medical Sciences) ;
  • Janbabai, Ghasem (Cancer Research Center, Mazandaran University of Medical Sciences) ;
  • Moosazadeh, Mahmood (Health Sciences Research Center, Mazandaran University of Medical Sciences) ;
  • Farshidi, Fereshte (Health Sciences Research Center, Mazandaran University of Medical Sciences) ;
  • Amiri, Mohammad (Department of Public Health, School of Public Health, Shahroud University of Medical Sciences) ;
  • Khosravi, Ahmad (Center for Health Related social and Behavioral Sciences Research Shahroud University of Medical Sciences)
  • Published : 2016.10.01

Abstract

Background: There has not been a general estimation about survival rates of breast cancer cases in Iran. Therefore, the present study aimed to assess survival using a meta-analysis. Materials and Methods: International credible databases such as Scopus, Web of Science, PubMed, Science direct and Google Scholar and Iranian databases such as Magiran, Irandoc and SID, from 1997 to 2015 were searched. All articles covering survival rate of breast cancer were entered into the study without any limits. Quality assessment of the articles and data extraction were performed by two researchers using the modified STROBE checklist, which includes 12 questions. Articles with scores greater than 8 were included in the analysis. A limitation of this meta-analysis was different methods for presenting of results in the papers surveyed. Results: A total of 21 articles with a sample of 12,195 people were analyzed. The one-year, three-year, five-year and ten-year survival rates of breast cancer in Iran were estimated to be 95.8% (94.6-97.0), 82.4% (79.0-85.8), 69.5% (64.5-74.5), 58.1% (39.6-76.6), respectively. The most important factors affecting survival of breast cancer were age, number of lymph nodes involved, size of the tumor and the stage of the disease. Conclusion: The five- and ten- year survival rates in Iran are lower than in developed countries. Conducting breast cancer screening plan support (including regular clinical examination, mammography), public training and raising awareness should be helpful in facilitating early diagnosis and increasing survival rates for Iranian women.

Keywords

Breast cancer;neoplasm;survival rate;meta-analysis;Iran

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