Five-year evaluation of epidemiological, geographical distribution and survival analysis of breast cancer in Markazi Province, 2007-11

Background: The prevalence and incidence of cancer in different parts of the world have different patterns. Identifying the frequency of malignancies in different social groups according to climatic conditions is considered as the primary component of prevention programs at different levels. This study was conducted to investigate the epidemiology, survival rates and geographical epidemiology of breast cancer in Markazi province. Materials and Methods: In this epidemiological study, data were collected from cancer registration program and death registration data in Markazi province. The data were analyzed by using SPSS software version 16 and Winpepi and significant level was 0.05. Arcview software was used to draw geographical map to show the breast cancer incidence rate in Markazi province. Results: Of the 400 cases recorded during the 5-year, 8.5% had died due to breast cancer. Five-year survival rate was 87 percent and a there was a significant correlation between survival rate and age. Most records related to the age group 40-49 years and the highest incidence rate was in Arak. The trends of incidence rate was not significant. Conclusion: The results showed that 5-year breast cancer survival rate is more than some other places which could be due to new and improved methods of treatment, methods of screening, and early detection of disease. Other aspects of the epidemiology of the disease is similar to other parts of Iran.