Although the overall DFS patterns between the Early-RT and Late-RT groups were not statistically significant, there was a slight trend favoring earlier RT initiation.
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Impact of the surgery to radiotherapy interval on oncological outcomes in squamous cell carcinoma of the oral tongue.
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The sentences
For patients with locally advanced-stage disease, a longer interval between surgery and RT was associated with a significant trend toward improved DFS.
The interval between surgery and RT, concurrent chemotherapy, stage, and close margin involvement did not reach statistical significance in this multivariate model for OS.
This aligns with our findings: in early-stage patients, none received concurrent chemotherapy, and earlier RT showed a trend toward better outcomes; whereas in locally advanced patients, the significant DFS difference was observed only in those who received concurrent chemotherapy.