RESUMEN
The objective of this study was to investigate the effects of nationwide lockdown during the Novel Coronavirus Disease 2019 (COVID-19) pandemic on an average volume of alcohol consumption and drinking patterns. A survey was conducted with a random sample of 4072 people. The authors found a significant influence of the pandemic period on alcohol consumption compared to the pre-pandemic period. The vast majority of respondents reduced the frequency of consumption of all types of alcohol. However, when the population was divided into subgroups, this differentiation demonstrated that particular groups are more vulnerable to alcohol misuse. Higher frequency of alcohol consumption during the COVID-19 pandemic lockdown was most often found in the group of men, people aged 18-24 years, inhabitants of big cities, and remote workers. Besides, significant differences were observed in subpopulations concerning different types of alcohol. Results emphasized the importance of monitoring and implementation of actions aimed at reducing the potential psychosocial impact of COVID-19, including alcohol-related disorders.