This study focused on Heavy Episodic Drinking (HED) among workers in their 20s and 30s and examined the prevalence of alcohol use disorders based on the frequency of HED. A cross-sectional study was conducted using a monitor-type web survey. The study used the Alcohol Use Disorder Identification Test (AUDIT) to assess alcohol use disorders. The participants were 1,393 men and 2,605 women in their 20s and 30s who had engaged in HED at least once a month and had not received any treatment for alcohol-related issues. The results showed that the frequency of HED among men was 45.1% once a month, 34.9% once a week, and 20.0% almost daily, whereas among women, it was 50.4% once a month, 33.4% once a week, and 16.3% almost daily. Among those who engaged in HED once a month, 40% of men and 30% of women had high levels of alcohol-related problems. Moreover, the usual amount of alcohol consumed was averaging equivalent of 3 to 4 drinks. Among those who engaged in HED once a week, 60% of men and 50% of women had high levels of alcohol-related problems. Furthermore, signs of dependence and harmful use were less frequent among women compared to men.
