TitleLow-income women with abnormal breast findings: results of a randomized trial to increase rates of diagnostic resolution.
Publication TypeJournal Article
Year of Publication2010
AuthorsBastani, R, Mojica, CM, Berman, BA, Ganz, PA
JournalCancer Epidemiol Biomarkers Prev
Date Published08/2010
KeywordsAdult, Breast Neoplasms, Female, Follow-Up Studies, Hispanic Americans, Hospitals, Public, Humans, Los Angeles, Mammography, Middle Aged, Patient Acceptance of Health Care, Poverty, Professional-Patient Relations, Referral and Consultation, Telephone, Time Factors

BACKGROUND: Timely diagnostic resolution of abnormal breast findings represents a critical step in efforts to reduce breast cancer morbidity and mortality. Yet, follow-up rates among resource poor populations are not optimal. Efforts to mitigate this disparity are needed. We report results of a randomized trial assessing the effectiveness of a patient support and navigation intervention in increasing timely diagnostic resolution of abnormal breast findings among indigent women.

METHODS: Women (n = 1,708) diagnosed with a breast abnormality at two public hospitals were randomized to an intervention or control group. The intervention, delivered through telephone, involved one call from a professional health worker and multiple calls from a lay health worker. The outcome, timely diagnostic resolution, defined as receipt of a definitive diagnosis (malignant or benign) within 6 months of the index referral, was assessed through medical chart audit.

RESULTS: Intent-to-treat analyses revealed no significant effect of the intervention on timely diagnostic resolution. Diagnostic resolution rates were 55% and 56%, respectively, in the intervention and control arms. The significant predictors were method of abnormality identification (odds ratio = 1.50) and location of first scheduled appointment (odds ratio = 0.62).

CONCLUSIONS: The intervention was not effective in creating change within the County health system. Achieving optimum diagnostic follow-up may require more intensive interventions than the one tested. In addition, system-level rather than patient-level interventions may hold more promise.

IMPACT: There are no randomized trials reported in the literature testing interventions to increase diagnostic follow-up of breast abnormalities. Future research might test patient and system-level interventions that can be sustained beyond the study period.

Alternate JournalCancer Epidemiol. Biomarkers Prev.
PubMed ID20647406
Grant ListR01 CA68474 / CA / NCI NIH HHS / United States