The impact of treatment package time on survival in surgically managed head and neck cancer in the United States

•Longer package time is associated with worse survival in head & neck cancer patients.•Package time of more than 14 weeks most consistently increased the risk of mortality.•Oropharyngeal and advanced stage tumors suffer the most from prolonged package time.•Addressing social barriers to care may...

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Bibliographic Details
Published in:Oral oncology 2019-01, Vol.88, p.39-48
Main Authors: Goel, Alexander N., Frangos, Mariana I., Raghavan, Govind, Lazaro, Stephanie L., Tang, Belicia, Chhetri, Dinesh K., Long, Jennifer L., St. John, Maie A.
Format: Article
Language:English
Subjects:
Aged
Carcinoma, Squamous Cell - drug therapy
Carcinoma, Squamous Cell - pathology
Carcinoma, Squamous Cell - radiotherapy
Carcinoma, Squamous Cell - surgery
Female
Follow-Up Studies
Head and neck cancer
Humans
Kaplan-Meier Estimate
Lost to Follow-Up
Male
Middle Aged
National Cancer Database
Neoadjuvant Therapy
Neoplasm Staging
Oropharyngeal Neoplasms - drug therapy
Oropharyngeal Neoplasms - pathology
Oropharyngeal Neoplasms - radiotherapy
Oropharyngeal Neoplasms - surgery
Package time
Postoperative Care
Postoperative radiation
Proportional Hazards Models
Radiotherapy, Adjuvant
Squamous cell carcinoma
Survival Rate
Time-to-Treatment
Treatment Outcome
United States
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Summary:•Longer package time is associated with worse survival in head & neck cancer patients.•Package time of more than 14 weeks most consistently increased the risk of mortality.•Oropharyngeal and advanced stage tumors suffer the most from prolonged package time.•Addressing social barriers to care may reduce treatment delay and improve prognosis. Delays in the initiation of postoperative radiation have been associated with worse outcomes; however, the effect of the overall treatment package time (interval from surgery through the completion of radiation) remains undefined. The purpose of this study was to determine the impact of package time on survival and to evaluate this effect among different subgroups of head and neck cancer patients. In this observational cohort study, the National Cancer Database was used to identify 35,167 patients with resected nonmetastatic head and neck cancer who underwent adjuvant radiation from 2004 to 2014. Kaplan-Meier survival estimates and multivariate Cox regression analyses were performed to determine the effect of treatment package time on overall survival. Median package time was 96 days (interquartile range, 85–112 days). After adjusting for covariates, package times of 11 weeks or less were associated with improved survival (adjusted hazard ratio (aHR), 0.90; 95% confidence interval, 0.83–0.97) compared to an interval of 12–13 weeks, whereas package times of more than 14 weeks were associated with worse survival (aHR, 1.14, 1.14, and 1.22 for 14–15, 15–17, and >17 weeks, respectively). A significant interaction was identified between package time and disease site, nodal status, and stage. Specifically, patients with oropharyngeal tumors, advanced stage (III or IV) disease, or nodal involvement experienced more pronounced increases in mortality risk with delays in treatment time. Treatment package time independently impacts survival. This effect may be strongest for patients with oropharyngeal tumors or advanced stage disease.
ISSN:1368-8375
1879-0593
DOI:10.1016/j.oraloncology.2018.11.021