As shown in Table 4b, in Whites, all dichotomous and density measures were significantly associated with increased odds of AUD. Further, FHDrPSND–AUDMaxSxCnt (OR=23.29) and FHFirst–AUDDx (OR=1.979) presented the most robust associations among density and dichotomous measures respectively. In Blacks, all density measures were significantly associated with increased odds of AUD, being most robust for FHDrAR–AUDMaxSxCnt (OR=7.81). However, among the dichotomous measures, only FHMother–AUDDx and FHParent–AUDDx presented significant associations. FHMother–AUDDx (OR=1.51) yielded the most robust association. Importantly, in both Whites and Blacks, all density (vs. dichotomous) measures presented consistent and substantially robust associations with likelihood of AUD.