Epidemiological Evaluation of Breast Cancer in Ecological areas of Kazakhstan - Association with Pollution Emissions

The aim of the research was to evaluate the incidence of breast cancer in the ecological areas of Kazakhstan and assess the potential. A retrospective study of 11 years (1999 to 2009) was conducted using descriptive and analytical methods. The incidence of breast cancer was the lowest in the Aral-Syr Darya area (18.6 +/- 0.80/100,000), and highest in the Irtysh area (48.9 +/- 1.90/100,000), with an increasing trends over time in almost all areas. A direct strong correlation between the degree of contamination with high pollution emissions in the atmosphere from stationary sources and the incidence of breast cancer (r=0.77 +/- 0.15; p=0.026). The results indicate an increasing importance of breast cancer in Kazakhstan and an etiological role for environmental pollution.