Abstract
Purpose
The role of appropriate therapy in breast cancer survival and survival disparities by race/ethnicity has not been fully elucidated. We investigated whether lack of guideline-recommended therapy contributed to survival differences overall and among Hispanics relative to non-Hispanic white (NHW) women in a case-cohort study.
Methods
The study included a 15% random sample of female invasive breast cancer patients diagnosed from 1997 to 2009 in 6 New Mexico counties and all deaths due to breast cancer-related causes. Information was obtained from comprehensive medical chart reviews. National Comprehensive Cancer Network (NCCN®) guideline-recommended treatment was assessed among white women aged < 70 who were free of contraindications for recommended therapy, had stage I–III tumors, and survived ≥ 12 months. Hazard ratios (HRs) and 95% confidence intervals (CIs) for breast cancer death were estimated using Cox proportional hazards models.
Results
Included women represented 4635 patients and 449 breast cancer deaths. Women who did not receive radiotherapy (HR 2.3; 95% CI 1.2–4.4) or endocrine therapy (HR 2.0; 95% CI 1.0–4.0) as recommended by guidelines had an increased risk of breast cancer death, relative to those treated appropriately. Receipt of guideline-recommended therapy did not differ between Hispanic and NHW women for chemotherapy (84.2% vs. 81.3%, respectively), radiotherapy (89.2% vs. 91.1%), or endocrine therapy (89.2% vs. 85.8%), thus did not influence Hispanic survival disparities.
Conclusions
Lack of guideline-recommended radiotherapy or endocrine therapy contributed to survival as strongly as other established prognostic indicators. Hispanic survival disparities in this population do not appear to be attributable to treatment differences.
Similar content being viewed by others
References
National Comprehensive Cancer Network Clinical Practice Guidelines in Oncology. Breast Cancer. 1997–2009. Referenced with permission from The NCCN Clinical Practice Guidelines in Oncology® for Guidelines 1997–2009. ©National Comprehensive Cancer Network, Inc 2010. All rights reserved. To view the most recent and complete version of the guideline. www.nccn.org
National Cancer Institute (2015) Breast cancer treatment—for health professionals (PDQ®). https://www.cancer.gov/types/breast/hp/breast-treatment-pdq. Accessed 2 Dec 2015
Coates AS, Winer EP, Goldhirsch A, Gelber RD, Gnant M, Piccart-Gebhart M, Thurlimann B, Senn HJ, Panel M (2015) Tailoring therapies-improving the management of early breast cancer: St Gallen International expert consensus on the primary therapy of early breast cancer 2015. Ann Oncol 26(8):1533–1546. https://doi.org/10.1093/annonc/mdv221
Wockel A, Wolters R, Wiegel T, Novopashenny I, Janni W, Kreienberg R, Wischnewsky M, Schwentner L, Group BS (2014) The impact of adjuvant radiotherapy on the survival of primary breast cancer patients: a retrospective multicenter cohort study of 8935 subjects. Ann Oncol 25(3):628–632. https://doi.org/10.1093/annonc/mdt584
Badakhshi H, Gruen A, Sehouli J, Budach V, Boehmer D (2013) The impact of patient compliance with adjuvant radiotherapy: a comprehensive cohort study. Cancer Med 2(5):712–717. https://doi.org/10.1002/cam4.114
Hebert-Croteau N, Brisson J, Latreille J, Rivard M, Abdelaziz N, Martin G (2004) Compliance with consensus recommendations for systemic therapy is associated with improved survival of women with node-negative breast cancer. J Clin Oncol 22(18):3685–3693. https://doi.org/10.1200/JCO.2004.07.018
Bickell NA, Wang JJ, Oluwole S, Schrag D, Godfrey H, Hiotis K, Mendez J, Guth AA (2006) Missed opportunities: racial disparities in adjuvant breast cancer treatment. J Clin Oncol 24(9):1357–1362
Haggstrom DA, Quale C, Smith-Bindman R (2005) Differences in the quality of breast cancer care among vulnerable populations. Cancer 104(11):2347–2358
Freedman RA, Virgo KS, He Y, Pavluck AL, Winer EP, Ward EM, Keating NL (2011) The association of race/ethnicity, insurance status, and socioeconomic factors with breast cancer care. Cancer 117(1):180–189
Smith GL, Shih YC, Xu Y, Giordano SH, Smith BD, Perkins GH, Tereffe W, Woodward WA, Buchholz TA (2010) Racial disparities in the use of radiotherapy after breast-conserving surgery: a national medicare study. Cancer 116(3):734–741. https://doi.org/10.1002/cncr.24741
Ooi SL, Martinez ME, Li CI (2011) Disparities in breast cancer characteristics and outcomes by race/ethnicity. Breast Cancer Res Treat 127(3):729–738. https://doi.org/10.1007/s10549-010-1191-6
Li CI, Malone KE, Daling JR (2003) Differences in breast cancer stage, treatment, and survival by race and ethnicity. Arch Intern Med 163(1):49–56
Warner ET, Tamimi RM, Hughes ME, Ottesen RA, Wong YN, Edge SB, Theriault RL, Blayney DW, Niland JC, Winer EP, Weeks JC, Partridge AH (2015) Racial and ethnic differences in breast cancer survival: mediating Effect of tumor characteristics and sociodemographic and treatment factors. J Clin Oncol 33(20):2254–2261. https://doi.org/10.1200/JCO.2014.57.1349
Bickell NA, LePar F, Wang JJ, Leventhal H (2007) Lost opportunities: physicians’ reasons and disparities in breast cancer treatment. J Clin Oncol 25(18):2516–2521
Bickell NA, Shastri K, Fei K, Oluwole S, Godfrey H, Hiotis K, Srinivasan A, Guth AA (2008) A tracking and feedback registry to reduce racial disparities in breast cancer care. J Natl Cancer Inst 100(23):1717–1723
Bickell NA, Weidmann J, Fei K, Lin JJ, Leventhal H (2009) Underuse of breast cancer adjuvant treatment: patient knowledge, beliefs, and medical mistrust. J Clin Oncol 27(31):5160–5167
Warren JL, Klabunde CN, Schrag D, Bach PB, Riley GF (2002) Overview of the SEER-Medicare data: content, research applications, and generalizability to the United States elderly population. Med Care 40(8 Suppl):IV-3–IV-18
Noone AM, Lund JL, Mariotto A, Cronin K, McNeel T, Deapen D, Warren JL (2014) Comparison of SEER treatment data with medicare claims. Med Care. https://doi.org/10.1097/MLR.0000000000000073
Jagsi R, Abrahamse P, Hawley ST, Graff JJ, Hamilton AS, Katz SJ (2012) Underascertainment of radiotherapy receipt in surveillance, epidemiology, and end results registry data. Cancer 118(2):333–341. https://doi.org/10.1002/cncr.26295
Walker GV, Giordano SH, Williams M, Jiang J, Niu J, MacKinnon J, Anderson P, Wohler B, Sinclair AH, Boscoe FP, Schymura MJ, Buchholz TA, Smith BD (2013) Muddy water? Variation in reporting receipt of breast cancer radiation therapy by population-based tumor registries. Int J Radiat Oncol Biol Phys 86(4):686–693. https://doi.org/10.1016/j.ijrobp.2013.03.016
Charlson ME, Pompei P, Ales KL, MacKenzie CR (1987) A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis 40(5):373–383
Klabunde CN, Legler JM, Warren JL, Baldwin LM, Schrag D (2007) A refined comorbidity measurement algorithm for claims-based studies of breast, prostate, colorectal, and lung cancer patients. Ann Epidemiol 17(8):584–590. https://doi.org/10.1016/j.annepidem.2007.03.011
Paik S, Shak S, Tang G, Kim C, Baker J, Cronin M, Baehner FL, Walker MG, Watson D, Park T, Hiller W, Fisher ER, Wickerham DL, Bryant J, Wolmark N (2004) A multigene assay to predict recurrence of tamoxifen-treated, node-negative breast cancer. N Engl J Med 351(27):2817–2826. https://doi.org/10.1056/NEJMoa041588
Barlow WE (1994) Robust variance estimation for the case-cohort design. Biometrics 50(4):1064–1072
Rothman KJ, Greenland S (1998) Measures of effect and measures of association. In: Rothman KJ, Greenland S (eds) Modern epidemiology. Lippincott Williams and Wilkins, Philadelphia, pp 55–56
Brotman DJ (2006) Mediators of the association between mortality risk and socioeconomic status. JAMA 296(7):763–764. https://doi.org/10.1001/jama.296.7.763-b (Author reply 764)
Xue X, Xie X, Gunter M, Rohan TE, Wassertheil-Smoller S, Ho GY, Cirillo D, Yu H, Strickler HD (2013) Testing the proportional hazards assumption in case-cohort analysis. BMC Med Res Methodol 13:88. https://doi.org/10.1186/1471-2288-13-88
Wu X-C, Lund MJ, Kimmick GG, Richardson LC, Sabatino SA, Chen VW, Fleming ST, Morris CR, Huang B, Trentham-Dietz A, Lipscomb J (2012) Influence of race, insurance, socioeconomic status, and hospital type on receipt of guideline-concordant adjuvant systemic therapy for locoregional breast cancers. J Clin Oncol 30(2):142–150
Cuzick J, Dowsett M, Pineda S, Wale C, Salter J, Quinn E, Zabaglo L, Mallon E, Green AR, Ellis IO, Howell A, Buzdar AU, Forbes JF (2011) Prognostic value of a combined estrogen receptor, progesterone receptor, Ki-67, and human epidermal growth factor receptor 2 immunohistochemical score and comparison with the Genomic Health recurrence score in early breast cancer. J Clin Oncol 29(32):4273–4278. https://doi.org/10.1200/JCO.2010.31.2835
Sparano JA, Wang M, Zhao F, Stearns V, Martino S, Ligibel JA, Perez EA, Saphner T, Wolff AC, Sledge GW Jr, Wood WC, Davidson NE (2012) Race and hormone receptor-positive breast cancer outcomes in a randomized chemotherapy trial. J Natl Cancer Inst 104(5):406–414
Albain KS, Unger JM, Crowley JJ, Coltman CA Jr, Hershman DL (2009) Racial disparities in cancer survival among randomized clinical trials patients of the Southwest Oncology Group. J Natl Cancer Inst 101(14):984–992
Silber JH, Rosenbaum PR, Clark AS, Giantonio BJ, Ross RN, Teng Y, Wang M, Niknam BA, Ludwig JM, Wang W, Even-Shoshan O, Fox KR (2013) Characteristics associated with differences in survival among black and white women with breast cancer. JAMA 310(4):389–397
Hershman DL, Unger JM, Barlow WE, Hutchins LF, Martino S, Osborne CK, Livingston RB, Albain KS (2009) Treatment quality and outcomes of African American versus white breast cancer patients: retrospective analysis of Southwest oncology studies S8814/S8897. J Clin Oncol 27(13):2157–2162
Jatoi I, Becher H, Leake CR (2003) Widening disparity in survival between white and African-American patients with breast carcinoma treated in the U. S. Department of Defense Healthcare system. Cancer 98(5):894–899. https://doi.org/10.1002/cncr.11604
Rizzo JA, Sherman WE, Arciero CA (2015) Racial disparity in survival from early breast cancer in the department of defense healthcare system. J Surg Oncol 111(7):819–823. https://doi.org/10.1002/jso.23884
Silva A, Rauscher GH, Hoskins K, Rao R, Ferrans CE (2013) Assessing racial/ethnic disparities in chemotherapy treatment among breast cancer patients in context of changing treatment guidelines. Breast Cancer Res Treat 142(3):667–672. https://doi.org/10.1007/s10549-013-2759-8
Jagsi R, Abrahamse P, Morrow M, Hawley ST, Griggs JJ, Graff JJ, Hamilton AS, Katz SJ (2010) Patterns and correlates of adjuvant radiotherapy receipt after lumpectomy and after mastectomy for breast cancer. J Clin Oncol 28(14):2396–2403
Centers for Disease Control, National Center for Health Statistics (2008) National Health Statistics Reports. State, Regional and National Estimates of Health Insurance coverage for people under 65 years of age. National Health Interview Survey. https://www.cdc.gov/nchs/data/nhsr/nhsr001.pdf
Acknowledgements
We would like to thank Ms. Kimberly Cooke, Mr. Nicolas Eldredge, Ms. Rebecca Sando, Ms. Chanel Jim, Mr. Francisco Martinez, Ms. Nancy Brito, and Ms. Georgia Hufnagel for their assistance in conducting this study.
Funding
This study was supported by Grants R01CA132877 and 2P30CA11810 from the National Cancer Institute (NCI) and NCI contract HSN26120130010I-Task Order HHSN26100005 to the Surveillance Epidemiology End Results (SEER) program.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they do not have any conflict of interest in connection with this manuscript.
Rights and permissions
About this article
Cite this article
Hill, D.A., Friend, S., Lomo, L. et al. Breast cancer survival, survival disparities, and guideline-based treatment. Breast Cancer Res Treat 170, 405–414 (2018). https://doi.org/10.1007/s10549-018-4761-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10549-018-4761-7