Lumbee Native American ancestry and the incidence of aggressive histologic subtypes of endometrial cancer

Objective: The Lumbee Indian tribe is the largest Native American tribe in North Carolina, with about 55,000 enrolled members who mostly reside in southeastern counties. We evaluated whether Lumbee heritage is associated with high-risk histologic subtypes of endometrial cancer. Methods: We retrospec...

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Main Authors: Chelsea Zhang (Author), Dario Roque (Author), Jessie A. Ehrisman (Author), Nicola DiSanto (Author), Gloria Broadwater (Author), Kemi M. Doll (Author), Paola A. Gehrig (Author), Angeles Alvarez Secord (Author), Laura J. Havrilesky (Author)
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Published: Elsevier, 2015-08-01T00:00:00Z.
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001 doaj_66bcd7a7994e43e9b0708fc5b858ccf2
042 |a dc 
100 1 0 |a Chelsea Zhang  |e author 
700 1 0 |a Dario Roque  |e author 
700 1 0 |a Jessie A. Ehrisman  |e author 
700 1 0 |a Nicola DiSanto  |e author 
700 1 0 |a Gloria Broadwater  |e author 
700 1 0 |a Kemi M. Doll  |e author 
700 1 0 |a Paola A. Gehrig  |e author 
700 1 0 |a Angeles Alvarez Secord  |e author 
700 1 0 |a Laura J. Havrilesky  |e author 
245 0 0 |a Lumbee Native American ancestry and the incidence of aggressive histologic subtypes of endometrial cancer 
260 |b Elsevier,   |c 2015-08-01T00:00:00Z. 
500 |a 2352-5789 
500 |a 10.1016/j.gore.2015.06.004 
520 |a Objective: The Lumbee Indian tribe is the largest Native American tribe in North Carolina, with about 55,000 enrolled members who mostly reside in southeastern counties. We evaluated whether Lumbee heritage is associated with high-risk histologic subtypes of endometrial cancer. Methods: We retrospectively analyzed the available records from IRB-approved endometrial cancer databases at two institutions of patients of Lumbee descent (year of diagnosis range 1980-2014). Each Lumbee case was matched by age, year of diagnosis, and BMI to two non-Lumbee controls. Chi-square test was used to compare categorical associations. Kaplan-Meier methods and log-rank test were used to display and compare disease-free survival (DFS) and overall survival (OS). Multivariate Cox proportional hazards regression was used to adjust for age and BMI while testing cohort as a predictor of DFS and OS. Results: Among 108 subjects, 10/35 (29%) Lumbee and 19/72 (26%) non-Lumbee subjects had high-risk (serous/clear cell/carcinosarcoma) histologic types (p = 0.8). 12/35 (34%) Lumbee and 24/72 (33%) non-Lumbee subjects had grade 3 tumors (p = 0.9). 5/33 (15%) Lumbee and 13/72 (18%) non-Lumbee had advanced stage endometrial cancer at diagnosis (p = 0.7). Lumbee ancestry was not associated with worse survival outcomes. OS (p = 0.054) and DFS (p = 0.01) were both worse in Blacks compared to Lumbee and White subjects. Conclusion: In this retrospective cohort analysis, Lumbee Native American ancestry was not a significant independent predictor of rates of high-risk histological subtypes of endometrial cancer or poor survival outcomes. 
546 |a EN 
690 |a Lumbee Indian tribe 
690 |a Survival outcomes 
690 |a Endometrial cancer 
690 |a Gynecology and obstetrics 
690 |a RG1-991 
690 |a Neoplasms. Tumors. Oncology. Including cancer and carcinogens 
690 |a RC254-282 
655 7 |a article  |2 local 
786 0 |n Gynecologic Oncology Reports, Vol 13, Iss C, Pp 49-52 (2015) 
787 0 |n http://www.sciencedirect.com/science/article/pii/S2352578915000429 
787 0 |n https://doaj.org/toc/2352-5789 
856 4 1 |u https://doaj.org/article/66bcd7a7994e43e9b0708fc5b858ccf2  |z Connect to this object online.