DSM-IV definition of alcohol use disorders, our definitions of Q-F were not exactly the same used by Saha et al. (2007) and replication of their findings may still be needed. Finally, results reported here are limited to the scope of the EFA and IRT analyses. Whether the addition of a consumption item (and which item) as a new criterion for alcohol use disorders would affect prevalence estimates across societies is an important topic that is beyond the scope of this report, but will be pursued in future analyses.
