Journal article
Primary radiotherapy for nonsurgically managed Stage I endometrial cancer: Utilization and impact of brachytherapy
Brachytherapy, v 14(3), pp 373-379
01 May 2015
PMID: 25600451
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The National Cancer Data Base (NCDB) was analyzed to evaluate practice patterns and the impact of radiotherapy modalities for endometrial cancer treated with primary radiotherapy.
The NCDB was queried for Stage I endometrioid adenocarcinoma patients treated with primary radiotherapy without surgery from 1998 to 2006. Brachytherapy (BT) utilization factors were established using multivariable logistic regression. Log-rank and Cox proportional hazards modeling were used to assess variables impacting survival.
A total of 853 patients were analyzed: 23.7%, 31.3%, and 45.0% received BT alone, external beam radiotherapy (EBRT) and BT, or EBRT alone. The BT utilization ranged from 40.5% to 51.9% over time (p=0.70). Lower utilization was associated with advanced age (≥80 years: odds ratio [OR] 0.43, 95% confidence interval [CI] 0.28–0.65, p<0.01) and facilities with volume in the bottom quartile (OR 0.44, 95% CI 0.30–0.66, p<0.01). Utilization was higher among patients living more than 30 miles from the facilities (OR 2.14, 95%CI 1.35–3.42, p<0.01). With 36-month median followup, unadjusted median survivals for EBRT dose of 30Gy or lower, EBRT dose higher than 30Gy, BT, and EBRT+BT were 12.6, 31.1, 44.6, and 57.1 months (p<0.01). After correcting for other factors, higher risk of mortality was seen with EBRT dose of 30Gy or lower (hazard ratio [HR]2.75, 95% CI 1.66–4.55, p<0.01) and EBRT dose higher than 30Gy (HR 1.43, 95% CI 1.07–1.91, p=0.02) compared with EBRT+BT. No difference was seen using BT alone (HR 1.29, 95% CI 0.92–1.79, p=0.14).
BT utilization for nonsurgically managed endometrial cancer remains low with most patients receiving EBRT alone. Despite concerns of overtreatment in a population with competing causes of death, BT appears to improve survival.
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Details
- Title
- Primary radiotherapy for nonsurgically managed Stage I endometrial cancer: Utilization and impact of brachytherapy
- Creators
- Beant S. Gill - University of PittsburghBhavana V. Chapman - University of PittsburghKaryn J. Hansen - Magee-Womens HospitalPaniti Sukumvanich - University of Pittsburgh Medical CenterSushil Beriwal - University of Pittsburgh
- Publication Details
- Brachytherapy, v 14(3), pp 373-379
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Radiation Oncology (and Nuclear Medicine)
- Web of Science ID
- WOS:000354421500011
- Scopus ID
- 2-s2.0-84928425588
- Other Identifier
- 991021897255304721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Oncology
- Radiology, Nuclear Medicine & Medical Imaging