Evaluation of the Incidence Rate of Malignancy and Its Relation with Background Radiation in Hamadan Province from 2018 to 2022.


1 3. Department of Medical Physics School of Medicine, Tabriz University of Medical Science, Tabriz, Iran

2 Tabriz University of Medical Sciences

3 Department of Medical Physics School of Medicine Tabriz University of Medical Science, Tabriz, Iran*

4 2. Radiology Department Faculty of Para Medicine Hamadan University of Medical Sciences, Hamadan, Iran



Humans are always exposed to natural radiation. Elsewhere in the world, there are areas with high background radiation whose annual dose exceeds the standard maximum radiation dose of a resident. Radiation- related cancers are more common in the thyroid, bone, and skin systems. Since the average annual effective dose in Hamadan province exceeds the world standard. The aim of this study is to evaluate the incidence of malignancy and its relation with background radiation in Hamadan province.
Material and Methods:
The present study is a retrospective cross-
sectional study, the records of all cancer patients related to residents of Hamadan province were provided by the Health Department during the years 2018 to 2022, and after final approval from it, the identifications like age, location, Occupation, and type of tumor were written and recorded. Results: The Spearman’s rho for all malignancies studied is not close to 1.
On the other hand, the P-Value also shows a value greater than 0.05 in all cases. This relationship is not statistically significant because the high dose rate in Hamadan province does not increase any malignancies. And the radiation parameter in this case does not have a negative impact.
The background radiation of Hamadan province is slightly higher than the world standard value, which has no effect on the incidence of malignancy, and the background
dose values close to the world standard value may prevent malignancy.
Keywords:       Background      Radiation, Malignancy, Radiation