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Relationship between Health Inequalities and Breast Cancer Survival in Mexican Women

Author

Listed:
  • Isabel Sollozo-Dupont

    (Department of Radiology, Instituto Nacional de Cancerología México, Mexico City 14080, Mexico)

  • Victor Jesús Lara-Ameca

    (Department of Radiology, Instituto Nacional de Cancerología México, Mexico City 14080, Mexico)

  • Dulce Cruz-Castillo

    (Department of Radiology, Instituto Nacional de Cancerología México, Mexico City 14080, Mexico)

  • Yolanda Villaseñor-Navarro

    (Department of Radiology, Instituto Nacional de Cancerología México, Mexico City 14080, Mexico)

Abstract

Objective: We aimed to analyze the relationship between the survival of patients with breast cancer and health inequalities. Methods: A retrospective cohort study of women with stage III breast cancer according to public healthcare was conducted. Groups were stratified according to the course of treatment and the presence of chronic disease other than cancer. Survival functions were estimated by using the Kaplan–Meier estimator, while the Cox proportional hazards model was employed for prognostic assessment. Results: The study was performed on 964 breast cancer patients. One hundred and seventy-six patients (18.23%) died during the follow-up period and 788 (81.77%) were alive at the end of the follow-up period. Education, marital status, personal history of prior biopsies, and socioeconomic status (SES) were found to be linked with survival. However, only SES exceeded the baseline risk of mortality when the treatment cycle was interrupted (full treatment: unadjusted 4.683, p = 0.001; adjusted 4.888 p = 0.001, partial treatment: unadjusted 1.973, p = 0.012; adjusted 4.185, p = 0.001). The same effect was observed when stratifying by the presence of chronic disease other than cancer (with chronic disease adjusted HR = 4.948, p = 0.001; unadjusted HR = 3.303, p = 0.001; without chronic disease adjusted HR = 4.850, p = 0.001; unadjusted HR = 5.121, p = 0.001). Conclusion: Since lower SES was linked with a worse prognosis, strategies to promote preventive medicine, particularly breast cancer screening programs and prompt diagnosis, are needed.

Suggested Citation

  • Isabel Sollozo-Dupont & Victor Jesús Lara-Ameca & Dulce Cruz-Castillo & Yolanda Villaseñor-Navarro, 2023. "Relationship between Health Inequalities and Breast Cancer Survival in Mexican Women," IJERPH, MDPI, vol. 20(7), pages 1-11, March.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:7:p:5329-:d:1111572
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    References listed on IDEAS

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    1. Jacqueline M Torres & Shemra Rizzo & Rebeca Wong, 2018. "Lifetime Socioeconomic Status and Late-life Health Trajectories: Longitudinal Results From the Mexican Health and Aging Study," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 73(2), pages 349-360.
    2. María Elena Martínez & Jonathan T Unkart & Li Tao & Candyce H Kroenke & Richard Schwab & Ian Komenaka & Scarlett Lin Gomez, 2017. "Prognostic significance of marital status in breast cancer survival: A population-based study," PLOS ONE, Public Library of Science, vol. 12(5), pages 1-14, May.
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