Supplementary Table 7 presents a summary of selected shared and group specific features stratified by ancestry and gender for the combined EEG and SNP models. The most consistent EEG predictor shared by all the AUD groups for the combined EEG+SNP based model, which distinguished the participants with AUD from the controls, included lower posterior gamma (e.g., amplitude, coherence, correlation) and higher slow wave connectivity (delta, theta, alpha) in multiple locations (weight ranking for each group/band/frequency in Supplementary Table 7 and Supplementary Tables 8–11). All AUD groups exhibited lower occipital gamma amplitude compared to control (weight ranking 1–4). EA-AUD genders shared lower gamma parietal interhemispheric coherence (male) and amplitude (female) (weight ranking 2,4), AA-AUD genders shared lower delta occipital interhemispheric correlation (weight ranking 1,7) and EA and AA female samples shared lower Frontal-Parietal gamma correlation (weight ranking 2,8). On the other hand, higher theta was revealed in AUD EA male interhemispheric connectivity in the occipital, frontal and temporal lobes (weight ranking 1,4,5) while both female groups showed higher slow wave intrahemispheric connectivity (delta, alpha) in frontal-parietal (AA, EA) (weight ranking 2,8)
