Our total sample consisted of over 3.2 million individuals, of whom 72,252 met our criteria for alcohol use disorder, with an average age at first registration of ~27 years (Table 1). The prevalence of the disorder was 3.3% in men and 1.1% in women, and slightly less than half of the affected individuals had one or more relatives similarly affected. Thirty-four percent of the men and 12% of the women with alcohol use disorder had early-onset deviant behavior.
