Department of Radiology
University of Wisconsin School of Medicine and Public Health

Lacson 2020

 

Year: 2020

Title: Factors Associated With Optimal Follow-up in Women With BI-RADS 3 Breast Findings

Country: United States

Age: Adult Only

Sex: Female

Population: Multiple Groups

Care Setting: Outpatient Ambulatory and Primary Care

Clinical Setting: Breast Cancer Screening

Data Level: Single Institution

Data Type: Disease Registry

Data Source: Local data

Conclusion: Disparities In Some Minority Groups

Health OutComes Reported: Yes

Mitigation: No

Free Text Conclusion: Hispanic patients with BI-RADS 3 breast findings were less likely to have optimal follow-up imaging than White patients.

Abstract: Objective: Assess rate of and factors associated with optimal follow-up in patients with BI-RADS 3 breast findings. Methods: This Institutional Review Board-approved, retrospective cohort study, performed at an academic medical center, included all women undergoing breast imaging (ultrasound and mammography) in 2016. Index reports for unique patients with an assessment of BI-RADS 3 (retrieved via natural language processing) comprised the study population. Patient-specific and provider-related features were extracted from the Research Data Warehouse. The Institutional Cancer Registry identified patients diagnosed with breast cancer. Optimal follow-up rate was calculated as patients with follow-up imaging on the same breast 3 to 9 months from the index examination among patients with BI-RADS 3 assessments. Univariate analysis and multivariable logistic regression determined features associated with optimal follow-up. Malignancy rate and time to malignancy detection were recorded. Results: Among 93,685 breast imaging examinations, 64,771 were from unique patients of which 2,967 had BI-RADS 3 findings (4.6%). Excluding patients with off-site index examinations and those with another breast examination <3 months from the index, 1,125 of 1,511 patients (74%) had optimal follow-up. In univariate and multivariable analysis, prior breast cancer was associated with optimal follow-up; younger age, Hispanic ethnicity, divorced status, and lack of insurance were associated with not having optimal follow-up. Malignancy rate was 0.86%, and mean time to detection was 330 days. Discussion: Follow-up of BI-RADS 3 breast imaging findings is optimal in only 74% of women. Further interventions to promote follow-up should target younger, unmarried women, those with Hispanic ethnicity, and women without history of breast cancer and without insurance coverage.