At the CTx cycle level, the prediction of dose reduction narrowly failed to reach statistical significance for the mutation cohort ( p = 0.053 Table A.15).
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Unrecognized mutations in DPYD* 2 A wild-type rectal cancer patients receiving postoperative 5-FU-based chemotherapy - do they have a clinical impact?
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0.0530
0.0600
The sentences
near-significantp = 0.057
Multivariable Cox regression analysis identified HapB3 status as a near-significant predictor of reduced DFS (HR 3.77; p = 0.057), suggesting a potential prognostic role independent of overt toxicity or dose adjustments.
narrowly non-significantp = 0.06
In addition, when looking at the number of 5-FU dose reductions at the patient level, study participants with newly diagnosed het_HapB3 status had a higher, but narrowly non-significant risk of 5-FU dose reductions ( p = 0.06, Table A.16) below the cut-off of 75% of the planned 5-FU dose compared to DPYD -WT carriers.