Abstract
Background and purpose The role of concurrent chemoradiotherapy (CRT) for anaplastic gliomas is undefined and patterns of care are under-reported. To address the knowledge gap, we examined use of CRT for grade III gliomas compared to radiotherapy (RT) alone. Material and methods In an observational study design cohort from the National Cancer Database, we identified 4437 adult patients receiving surgery followed by either CRT or RT for supratentorial anaplastic glioma in 2003–2011. Univariable and multivariable logistic regression analyses were used to assess factors associated with use of CRT. Overall survival (OS) was assessed by the Kaplan–Meier analysis with log-rank tests, Cox proportional hazards regression modeling, and propensity score matching. Results Receipt of CRT (vs. RT) was associated with recent year of diagnosis (OR for 2011 (vs. 2003) 3.36, 95% CI 2.49–4.54) and having astrocytoma (vs. oligodendroglioma) (OR 1.37, 95% CI 1.15–1.63). Patients receiving CRT had a lower adjusted hazard of death (hazard ratio 0.72, 95% CI 0.65–0.79). Outcomes were worse for patients ≥60 (HR 6.94, 95% CI 6.09–7.91) and astrocytomas (HR 2.08, 95% CI 1.85–2.34). Conclusion Use of concurrent CRT is associated with more recent year of diagnosis and improved survival relative to RT alone.
Original language | English (US) |
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Pages (from-to) | 258-265 |
Number of pages | 8 |
Journal | Radiotherapy and Oncology |
Volume | 125 |
Issue number | 2 |
DOIs | |
State | Published - Nov 2017 |
Keywords
- Anaplastic glioma
- Central nervous system
- Chemoradiotherapy
- Combined modality
- Outcomes
ASJC Scopus subject areas
- Hematology
- Oncology
- Radiology Nuclear Medicine and imaging