a Mean FC within the significantly altered SC network. b Mean SC within the significantly altered FC network. c Structural–functional coupling differences between SA, NSA, and HC at the whole-brain network. d Similar to c but in the significantly altered SC and FC network. SA suicide attempt, NSA non-suicide attempt, HC healthy controls, SC structural connectivity, FC functional connectivity, ns not significant. *p < 0.05; ***p < 0.005.