The current study adds to this literature by estimating genetic correlations from GWASs summary statistics for PTSD (as well as re-experiencing symptoms), and a range of alcohol phenotypes. The latter include drinks per week (DPW), AUDIT-C (alcohol frequency, quantity, and frequency of 6 + drinks), problems (P) score from the AUDIT (AUDIT-P; including 7 items assessing problems; e.g. unable to stop drinking once you started), as well as total score (AUDIT-T; comprised of AUDIT-C and -P), maximum alcohol intake (typical habitual daily maximum usage), AUD (using DSM-5 diagnosis; American Psychiatric Association, 2013) and AD (using DSM-IV diagnosis; American Psychiatric Association, 1994). In so doing, it adds to previous work by examining not only the genetic association between PTSD and alcohol-related problems outcomes, but also PTSD and other alcohol consumption phenotypes including more normative use, which has been generally neglected in the PTSD-alcohol comorbidity literature with few exceptions (Mallard et al., 2021). Finally, this study attempts to examine whether findings are consistent between those of European Ancestry (EA) and African Ancestry (AA) individuals – the latter of which is particularly important
