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Research Article| Volume 164, ISSUE 1, P3-11, January 2022

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Gynecologic oncologist impact on adjuvant chemotherapy care for stage II-IV ovarian cancer patients

  • Kristin S. Weeks
    Correspondence
    Corresponding author at: CPHB, Room S467, Central Mail Services, The University of Iowa, 2222 Old Hwy 218S, Iowa City, IA 52242-9901, United States of America.
    Affiliations
    Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America

    Department of Epidemiology, University of Iowa, Iowa City, IA, United States of America
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  • Charles F. Lynch
    Affiliations
    Department of Epidemiology, University of Iowa, Iowa City, IA, United States of America

    Iowa Cancer Registry, State Health Registry of Iowa, University of Iowa, Iowa City, IA, United States of America
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  • Michele West
    Affiliations
    Iowa Cancer Registry, State Health Registry of Iowa, University of Iowa, Iowa City, IA, United States of America
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  • Ryan Carnahan
    Affiliations
    Department of Epidemiology, University of Iowa, Iowa City, IA, United States of America
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  • Michael O'Rorke
    Affiliations
    Department of Epidemiology, University of Iowa, Iowa City, IA, United States of America
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  • Jacob Oleson
    Affiliations
    Department of Biostatistics, University of Iowa, Iowa City, IA, United States of America
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  • Megan McDonald
    Affiliations
    Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of Iowa Hospitals and Clinics, Iowa City, IA, United States of America
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  • Sherri L. Stewart
    Affiliations
    Division of Cancer Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
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  • Ovarian Cancer Treatment Study
    Author Footnotes
    1 Lisa L. Hunter, (Iowa Cancer Registry); Sue-Min Lai, Sarma Garimella, John Keighley, Li Huang (Kansas Cancer Registry); Jeannette Jackson-Thompson, Nancy Hunt Rold, Chester L. Schmaltz, Saba Yemane (Missouri Cancer Registry); Wilhelmina Ross, Diane Ng, Maricarmen Traverso-Ortiz (Westat); Jennifer M. Wike (CDC contractor); Trevor D. Thompson, Sun Hee Rim, Angela Moore (CDC).
  • Mary Charlton
    Affiliations
    Department of Epidemiology, University of Iowa, Iowa City, IA, United States of America

    Iowa Cancer Registry, State Health Registry of Iowa, University of Iowa, Iowa City, IA, United States of America
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  • Author Footnotes
    1 Lisa L. Hunter, (Iowa Cancer Registry); Sue-Min Lai, Sarma Garimella, John Keighley, Li Huang (Kansas Cancer Registry); Jeannette Jackson-Thompson, Nancy Hunt Rold, Chester L. Schmaltz, Saba Yemane (Missouri Cancer Registry); Wilhelmina Ross, Diane Ng, Maricarmen Traverso-Ortiz (Westat); Jennifer M. Wike (CDC contractor); Trevor D. Thompson, Sun Hee Rim, Angela Moore (CDC).
Published:November 11, 2021DOI:https://doi.org/10.1016/j.ygyno.2021.11.001

      Highlights

      • Gynecologic oncologist surgeons were associated with increased odds of initiating adjuvant chemotherapy.
      • Gynecologic oncologist surgeons were associated with greater odds of a gynecologic oncologist chemotherapy provider.
      • Gynecologic oncologist adjuvant chemotherapy providers were associated with decreased time from surgery-to-chemotherapy.
      • Rural and urban women traveled farther to receive chemotherapy care with gynecologic oncologist.
      • Rural women (versus urban) had a gynecologic oncologist involved in their adjuvant chemotherapy less and traveled farther.

      Abstract

      Objective

      We aim to evaluate the impact gynecologic oncologists have on ovarian cancer adjuvant chemotherapy care from their role as surgeons recommending adjuvant chemotherapy care and their role as adjuvant chemotherapy providers while considering rural-urban differences.

      Methods

      Multivariable adjusted logistic regressions and Cox proportional hazards models were developed using a population-based, retrospective cohort of stage II-IV and unknown stage ovarian cancer patients diagnosed in Iowa, Kansas, and Missouri in 2010–2012 whose medical records were abstracted in 2017–2018.

      Results

      Gynecologic oncologist surgeons (versus other type of surgeon) were associated with increased odds of adjuvant chemotherapy initiation (adjusted odds ratio (OR) 2.18; 95% confidence interval (CI) 1.10–4.33) and having a gynecologic oncologist adjuvant chemotherapy provider (OR 10.0; 95% CI 4.58–21.8). Independent of type of surgeon, rural patients were less likely to have a gynecologic oncologist chemotherapy provider (OR 0.52; 95% CI 0.30–0.91). Gynecologic oncologist adjuvant chemotherapy providers (versus other providers) were associated with decreased surgery-to-chemotherapy time (rural: 6 days; urban: 8 days) and increased distance to chemotherapy (rural: 22 miles; urban: 11 miles). Rural women (versus urban) traveled 38 miles farther when their chemotherapy provider was a gynecologic oncologist and 27 miles farther when it was not.

      Conclusion

      Gynecologic oncologist surgeons may impact adjuvant chemotherapy initiation. Gynecologic oncologists serving as adjuvant chemotherapy providers were associated with some care benefits, such as reduced time from surgery-to-chemotherapy, and some care barriers, such as travel distance. The barriers and benefits of having a gynecologic oncologist involved in adjuvant chemotherapy care, including rural-urban differences, warrant further research in other populations.

      Keywords

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      Linked Article

      • Defining the essential role of the gynecologic oncologist in rural ovarian cancer care delivery
        Gynecologic OncologyVol. 164Issue 1
        • Preview
          In 2022, the standard of care in the United States for patients with advanced ovarian cancer includes an assessment by a gynecologic oncologist, primarily for the purpose of determining whether patients are candidates for upfront cytoreductive surgery, or should first be triaged to neoadjuvant chemotherapy [1]. This recommendation stems from robust data that clinical outcomes are optimal when cancer-specific surgery for ovarian cancer is performed by gynecologic oncologists in high-volume institutions.
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