approaching significanceP = 0.068
The only biomarker approaching significance was pEGFR at 24 h ( P = 0.068), with the sensitive group demonstrating decreased pEGFR expression relative to control (89.3% (95% CI: 36.1%, 142.5%) while the resistant group had a higher level of pEGFR (137.7% (95% CI: 101.4%, 173.9%).