showed a trendp = 0.064
unya 10.13039/501100010552 SGR 2021‐01126 3.4 Regression models testing LC × sex interactions on SWS measures Lineal regression models including sex × LC interaction showed that LC integrity was positively associated with SO power ( β = 0.632, p = 0.001) and SWA power ( β = 0.532, p = 0.003), and showed a trend for delta power ( β = 0.338, p = 0.064).