Trend analyses of breast cancer incidence and mortality in Vojvodina

Purpose: Breast cancer is the most common type of malignant tumor in women and one of the most significant public health problems in the world. The purpose of this work was to determine breast cancer epidemiology in the Autonomous Province of Vojvodina in a 20-year period (1993 to 20/2) by determining breast cancer incidence and mortality in female population and analyzing the trend in the specified period. Methods: The research involved the population of women in Vojvodina in the period from 1993 to 2012. Data were obtained from the Register for malignant neoplasms of Vojvodina. Incidence and mortality trends were analyzed by a joinpoint regression analysis. Results: A total of 20,242 cases of breast cancer were registered in the observed period. Standardized incidence ratio in 2012 was 71.2/100,000. The trend of incidence increased with an average annual percentage of growth of 2.10. A total 10,062 deaths due to breast cancer were documented. Standardized incidence ratio in 2012 was 28.6/100,000. An increase of mortality rate by 1.70% per year was recorded in the period from 1992 to 2006 and a decline in the mortality rate by 1.56% was noticed afterwards. The highest percentage of deaths due to breast cancer was recorded in a group aged 60-69 years (26.7%). Conclusions: Our results indicated an unfavorable increasing trend in breast cancer incidence, while favorable trend in mortality was noticed after 2006.