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Oncotype DX Test Receipt among Latina/Hispanic Women with Early Invasive Breast Cancer in New Jersey: A Registry-Based Study

Author

Listed:
  • Nicholas Acuna

    (Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA)

  • Jesse J. Plascak

    (Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210, USA)

  • Jennifer Tsui

    (Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA)

  • Antoinette M. Stroup

    (Department of Biostatistics & Epidemiology, Rutgers School of Public Health, Piscataway, NJ 08854, USA
    Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
    New Jersey State Cancer Registry, New Jersey Department of Health, Trenton, NJ 08625, USA)

  • Adana A. M. Llanos

    (Department of Biostatistics & Epidemiology, Rutgers School of Public Health, Piscataway, NJ 08854, USA
    Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA)

Abstract

Oncotype DX ® (ODX) is a valid test of breast cancer (BC) recurrence risk and chemotherapy benefit. The purpose of this study was to examine prevalence of and factors associated with receipt of ODX testing among eligible Latinas/Hispanics diagnosed with BC. Sociodemographic and tumor data of BC cases diagnosed between 2008 and 2017 among Latina/Hispanic women ( n = 5777) were from the New Jersey State Cancer Registry (NJSCR). Eligibility for ODX testing were based on National Comprehensive Cancer Network guidelines. Multivariable logistic regression models of ODX receipt among eligible women were used to estimate adjusted odds ratios (AOR) and 95% confidence intervals (CI) by demographic and clinicopathologic factors. One-third of Latinas/Hispanics diagnosed with BC were eligible for ODX testing. Among the eligible, 60.9% received ODX testing. Older age (AOR 0.08, 95% CI: 0.04, 0.14), low area-level SES (AOR 0.58, 95% CI: 0.42, 0.52), and being uninsured (AOR 0.58, 95% CI: 0.39, 0.86) were associated with lower odds of ODX testing. While there was relatively high ODX testing among eligible Latina/Hispanic women with BC in New Jersey, our findings suggest that age, insurance status, and area-level SES contribute to unequal access to genetic testing in this group, which might impact BC outcomes.

Suggested Citation

  • Nicholas Acuna & Jesse J. Plascak & Jennifer Tsui & Antoinette M. Stroup & Adana A. M. Llanos, 2021. "Oncotype DX Test Receipt among Latina/Hispanic Women with Early Invasive Breast Cancer in New Jersey: A Registry-Based Study," IJERPH, MDPI, vol. 18(10), pages 1-14, May.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:10:p:5116-:d:552887
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    References listed on IDEAS

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    1. Hayes-Bautista, D.E. & Chapa, J., 1987. "Latino terminology: conceptual bases for standardized terminology," American Journal of Public Health, American Public Health Association, vol. 77(1), pages 61-68.
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