Abstract
Background
To assess the impact of treatment delay on survival of oral/oropharyngeal cancer (OSCC).
Methods
We followed 5743 OSCCs between 2004 and 2009 from a population‐based screening program and ascertained death until the end of 2012.
Results
The hazard ratios (HRs) of mortality from OSCC were 1.46 (1.30‐1.65) and 1.18 (1.04‐1.33) in univariable and multivariable analyses, respectively, for treatment delay longer than 6 weeks compared with that shorter than 3 weeks. The corresponding figures were 1.12 (1.01‐1.24) and 1.00 (0.91‐1.11) for treatment delay between 3 and 6 weeks. Advancing age (1.01), higher stage (stage II: 1.84, stage III: 2.97, stage IV: 6.33), cancer in tongue (1.37), or hard palate (1.63) had higher HR of mortality (P < .05). However, treatment at medical center had a lower mortality (0.83, 0.75‐0.91) than local/regional hospital.
Conclusions
Treatment delay longer than 6 weeks for OSCCs detected via a population‐based screening program had unfavorable survival.
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