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Correlates of Triple Negative Breast Cancer and Chemotherapy Patterns in Black and White Women With Breast Cancer
- Source :
- Clinical Breast Cancer. 17:232-238
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Background Triple negative breast cancer (TNBC) tumors are estrogen receptor-negative, progesterone receptor-negative, and human epidermal growth factor-negative. TNBC is responsive to chemotherapy, but chemotherapy might be underused in some patient subgroups. The goal of the present study was to characterize the patterns of chemotherapy use (uptake and completion) in TNBC patients. Patients and Methods Women with primary invasive, nonmetastatic breast cancer were recruited in Washington, DC, and Detroit. Data were collected using a standardized telephone survey that captured sociocultural and health care process factors. Clinical data were abstracted from the medical records. We used χ 2 tests to access the association between the receipt of chemotherapy use (initiation and completion) and categorical variables, and t tests were used for continuous variables. Logistic regression models were used to evaluate the factors associated with chemotherapy uptake. Results Women with TNBC (16% of sample) were more likely to be black than white (68% vs. 32%; P P = .01) and in women without (vs. with) healthcare discrimination (35% vs. 25%; P = .04). In multivariable models, only race was associated with the receipt of chemotherapy. Black women were more likely to receive chemotherapy than were white women. The odds ratio of receiving chemotherapy by race was 4.1 (95% confidence interval, 1.3-13.1). Each 1-year increase in age was associated with a lower likelihood of chemotherapy completion (odds ratio, 0.9; 95% confidence interval, 0.826-0.981; P = .02). Women with at least some college were less likely to complete chemotherapy than were those with other education levels ( P = .02). Conclusion A substantial number of TNBC patients failed to receive and/or complete chemotherapy. Differences in chemotherapy uptake by race and sociocultural factors diminished in multivariable models but age and stage remained significant. Suboptimal treatment among women with TNBC could contribute to adverse outcomes. Future investigations are necessary to assess whether the noninitiation and/or noncompletion of chemotherapy is clinically warranted.
- Subjects :
- Oncology
Cancer Research
medicine.medical_specialty
Receptor, ErbB-2
medicine.medical_treatment
Triple Negative Breast Neoplasms
Logistic regression
Article
White People
03 medical and health sciences
0302 clinical medicine
Breast cancer
Internal medicine
Antineoplastic Combined Chemotherapy Protocols
Biomarkers, Tumor
medicine
Humans
030212 general & internal medicine
Survival rate
Triple-negative breast cancer
Gynecology
Chemotherapy
business.industry
Medical record
Odds ratio
Middle Aged
Prognosis
medicine.disease
Confidence interval
Black or African American
Survival Rate
Receptors, Estrogen
Chemotherapy, Adjuvant
030220 oncology & carcinogenesis
Female
Receptors, Progesterone
business
Follow-Up Studies
Subjects
Details
- ISSN :
- 15268209
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Clinical Breast Cancer
- Accession number :
- edsair.doi.dedup.....d36d087e1303554c7904103eb3f53305