Risk Factors for Breast Cancer in Urmia: A Case-Control Study

Breast cancer is the most frequent malignancy in women worldwide. The purpose of this study was to investigate some established risk factors for breast cancer in women aged 22 to 63 in Urmia.

A case-control study was conducted  to investigate risk factors for breast cancer among women in Urmia. Data were collecctd through interviews with175 breast cancer patients and 172 control women during 2016 to 2018.

The results of univariate logistic regression analysis havee shown Single women (OR 1.253, 95% CI 0.587-2.671) and women with a primary level of education wereat high risk for breast cancer (OR 2.87, 95% CI 1.383-5.986). multivariate logistic regression model indicated that high BMI (OR 1.1, 95% CI 1–1.21) and an increasing  number of pregnancies (OR 3.04, 95% CI 1.37–6.74) were significantly associated with breast cancer.

The study indicated that the average age of breast cancer onset in Urmia is lower than that in other regions of the country. Moreover, women with a history of hormone therapy and women with an increasing  number of pregnancies were at higher risk of developing breast cancer.