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October 9, 2025JCO Global OncologyOpen Access

Cancer Health Disparities Among Patients With Early-Stage Estrogen Receptor–Positive Breast Cancer: Impact of Public Versus Private Health Care on Diagnosis-to-Treatment Interval in Brazil

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This study reveals differences in diagnosis-to-treatment intervals for early-stage ER+ breast cancer in public and private health care settings.

Patients receiving public care experienced longer diagnosis-to-treatment intervals, averaging 93 days compared to 41 days in private care.
Women treated in public health facilities had more advanced disease, with a higher percentage of stage III tumors at diagnosis.
Significant disparities were found in treatment types, with public patients more likely to receive mastectomies and chemotherapy.
The study indicates the inadequacy of Law 12.732/2012 in ensuring timely cancer treatment in public health systems.

Barroso‐Sousa et al. (2025) studied this question.

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This study reveals differences in diagnosis-to-treatment intervals for early-stage ER+ breast cancer in public and private health care settings.