a trend toward significancep = 0.091
When ECOG PS was accounted for as a confounding variable, the association between the fT3/fT4 ratio and muscle wasting demonstrated a trend toward significance (p = 0.091). fT3/fT4 ratio threshold, subgroup and survival analyses To further explore this relationship, ROC analysis was performed, which identified 2.84 as the optimal fT3/fT4 ratio threshold for distinguishing between low- and high-risk classifications for muscle depletion with the highest predictive accuracy.