344P - Epidemiological analysis and overall survival of female breast cancer in a developing middle eastern country over 18 years

Background

Breast cancer imposes a significant regional and global health burden not only due to being the most prevalent malignancy in females in the Middle East and worldwide, but due to the associated substantial morbidity and mortality. Therefore, the determination of the epidemiological features of breast cancer in the Middle East is of prominent interest given the significant resultant burden associated with breast cancer as it enables for the efficient introduction of effective interventions.

Methods

Data on 20,046 female patients of different nationalities and residing in Jordan diagnosed with breast cancer during the period of 2000-2018 were obtained from the Jordan Cancer Registry. Consequently, comprehensive statistical analysis was performed to establish the epidemiological characteristics of breast cancer in Jordan, including the overall survival and crude incidence.

Results

A total of 20,046 female patients with a mean age of 51.5 ± 12.5 years old were included in the analysis. Only 6.54% of the enrolled patients were smokers at the time of diagnosis. Breast cancer was more commonly affecting the left breast, 46.9% of the patients, than the right breast, 43.5% of the patients, whereas 1.18% of the patients had breast cancer bilaterally. The upper outer quadrant of the breast was the most commonly reported site of tumour location. Moderately differentiated carcinoma was the most commonly encountered grade in 31.4% of the patients, whereas 28.9% had poorly differentiated carcinoma. Regional spread to the lymph nodes was observed in 19.0% of the sample and 13.1% of the patients had distant metastasis, while localized breast cancer was noted in 16.6% of the patients. A statistically significant increase in the crude incidence of breast cancer in females has been observed in Jordan over the 18 years period with a crude incidence estimated effect of 0.46 (P-value<0.001). The overall survival rate was determined to be 95.8%, 83.2%, and 62.8% at 1-year, 3-year, and 5-year interval, respectively.

Conclusions

Breast cancer in Jordan imposes a significant burden due to the significant increase in the crude incidence over the 18-year period, and thus mandating vigorous and vigilant screening and preventative measures.

Clinical trial identification

Editorial acknowledgement

Legal entity responsible for the study

The authors.

Funding

Has not received any funding.

Disclosure

All authors have declared no conflicts of interest.