“…Thus, we investigated whether the "positive" ndings described earlier, as shown in 3D and 3E, remained signi cant after accounting for alcohol use. HCP evaluated alcohol use with multiple questions and, as in our earlier work (Li et al, 2022;Li et al, 2021c), we conducted a principal component analysis of all drinking-related measures and identi ed a single, principal component (PC1) with an eigenvalue (7.42) > 1 and explaining 49.47% of the variance. With PC1 as an additional covariate to re ect the severity of alcohol use, the results showed that VS-loss β was correlated with externalizing score across men (r = 0.11, p = 0.017), but not all subjects (r = 0.04, p = 0.167) or women (r = -0.03, p = 0.516), and VS-loss β was not correlated with internalizing score across all (r = -0.03, p = 0.291), men (r = -0.03, p = 0.592) or women (r = -0.03, p = 0.560).…”