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The influence of marital status and race/ethnicity on risk of mortality for triple negative breast cancer

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  • Carol Parise
  • Vincent Caggiano

Abstract

Purpose: To assess the effect of marital status and the role of race/ethnicity on breast cancer specific mortality in women with triple negative breast cancer (TNBC). Methods: The study utilized the California Cancer Registry to identify 22,812 cases of first primary female TNBC. Unadjusted Kaplan-Meier breast cancer specific survival was computed. Cox Proportional Hazards modeling was used to compute the adjusted risk of breast cancer specific mortality for women who were single, separated, divorced, and widowed when compared with women who were married. Models were adjusted for age, stage, tumor grade, SES, and treatment with surgery, chemotherapy, hormone therapy, and radiation therapy. Hazard ratios (HR) and 95% confidence intervals (CI) were reported. Results: Separated (HR: 1.45; 95% CI: 1.14–2.01) and widowed (HR: 1.39; 95%CI: 1.23–1.57) white women had a higher risk of mortality than white married women whereas single and divorced white women had the same risk of mortality. For Asian/Pacific Islanders (API), only single (HR: 1.55; 95% CI: 1.17–2.06) and divorced (HR:1.81; 95% CI:1.26–2.60) women had a higher risk of mortality than married women. Marital status had no influence on risk of mortality for either black or Hispanic women. Conclusions: The risk of mortality associated with marital status is dependent on race/ethnicity. Only white and API women with TNBC have a marital advantage.

Suggested Citation

  • Carol Parise & Vincent Caggiano, 2018. "The influence of marital status and race/ethnicity on risk of mortality for triple negative breast cancer," PLOS ONE, Public Library of Science, vol. 13(4), pages 1-11, April.
    • Handle: RePEc:plo:pone00:0196134
    DOI: 10.1371/journal.pone.0196134
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    References listed on IDEAS

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    1. Andrea Fleisch Marcus & Alex H Illescas & Bernadette C Hohl & Adana A M Llanos, 2017. "Relationships between social isolation, neighborhood poverty, and cancer mortality in a population-based study of US adults," PLOS ONE, Public Library of Science, vol. 12(3), pages 1-13, March.
    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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