an unfavorable trendp = 0.055
The administration of adjuvant chemotherapy was associated with worse PFS ( p = 0.013), and an unfavorable trend was also observed for DM incidence ( p = 0.055).
The administration of adjuvant chemotherapy was associated with worse PFS ( p = 0.013), and an unfavorable trend was also observed for DM incidence ( p = 0.055).
A favorable trend for better response was found for a higher IMRT-SIB dose ≥ 55 Gy (OR 0.57; 0.32–1.01, p = 0.056).
In particular, the DM rate was higher, marginally significant, in the high-risk sub-set of patients reaching a 24.5% compared to 16.2% of low and intermediate risk ( p = 0.062).
Multivariable analysis found no significant impact on tumor response (pCR, TRG1-2) or downstaging for the different dose levels, although a positive trend was observed for doses ≥ 55 Gy.