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To evaluate the Ethnic Differences in Estrogen (ER), Progesterone (PR) and Her 2/neu receptors among Women with Breast Cancer at JPMC, the largest public sector tertiary care hospital in Karachi. The study was conducted at the oncology ward, JPMC Karachi from 1st July 2017 to 31st December 2018. During this period, more than 500 women with breast cancer of different ethnicities visited the oncology ward, however 450 patients were included in the study, as only they had the complete reports on the receptors status and tumour histology. The data collected included tumour histology, grade, receptors status, age and ethnicity. Data was analyzed with SPSS version 20 using the Chi-Square Test to observe statistical differences in the receptors status of different ethnicities. Analysis of receptors status as per ethnicity showed that ER was proportionately more positive in Pushtoon patients at the rate of 28 (75.7%) as compared to Urdu Speaking 116 (60.4%), Punjabis 48 (60%), Sindhis 38(38.7%) and Balochis 26 (61.1%). Similarly, PR and Her-2/neu receptor were also higher in Pushtoons at the rate of 24 (64.9%) and 15 (40.5%) respectively. The behaviour of Triple Positivity was also more prominent in Pushtoons at the rate of 9 (24.3%) and the Pushtoons were also proportionately less likely to be Triple Negative at the rate 05 (13.5%) as compared to other ethnicities. All the results were statistically non significant (p values>0.05). In this study we observed a relatively higher expression of ER, PR and Her 2/neu Receptors in Pushtoons as compared to other ethnicities. Understanding the factors underlying these differences may provide further insight into the breast cancer aetiology in different populations.

Citation

Muhammad Ejaz Khan, Ghulam Haider, Khalil Ahmed, Moiz Ahmed, Ammara Manzoor, Amna Masood, Shiraz Shaikh, Kiran Abbas. Ethnic differences in the receptors status of estrogen, progesterone and Her2/Neu among breast cancer women: A single institution experience. JPMA. The Journal of the Pakistan Medical Association. 2020 Nov;70(11):1970-1974

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PMID: 33341842

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