Outcome of Screening Mammography for Women Attending Primary Healthcare Centers: One-Year Review

Abstract

Background: Breast cancer is the most prevalent cancer in women globally and in the Kingdom of Bahrain. Studies have shown that screening mammography is an effective way to identify early stages of breast cancer in women and has decreased breast cancer mortality. Therefore, determining the outcome of breast cancer screening is essential for proper assessment and improvement of the screening program. Objective: This study aims to assess the outcome of breast cancer screening by mammography for women attending Primary Healthcare Centers in the Kingdom of Bahrain. Methods: This is a cross-sectional study of women who had screening mammograms in primary healthcare centers in the Kingdom of Bahrain for one year. The study included 2438 women aged 40 years and older. Data were extracted from electronic medical records. Results: The most prevalent breast density level was scattered fibroglandular density (55.3%), while extremely dense breasts (5.3%) were the least common. The study showed that 68.3% of the reports were normal, while 31.7% of women were recalled for further imaging. The most common reasons for recalls were nodules/lumps in 34.2%. Additional imaging was done for 69.4% of the cases, while 30.6% of women missed follow-up appointments. Of the patients needing biopsies, the procedure was performed for 62.5% of the women; of these, there were histologically confirmed malignancies in 31.6%. Conclusion: The breast cancer detection rate in this study is 0.5%. A recall rate of about 32% is higher than in other studies. This study also shows a high percentage of women who didn’t follow up for the additional images and procedures requested by radiologists, which needs further studies to identify the reasons. Educating women on the importance of compliance with the additionally requested workups and close monitoring and follow-up of the screened women by health facilities are crucial for the success of the breast screening program.