Examining how the first year of the COVID-19 pandemic affected alcohol use in different socio-demographic groups in an Australian representative longitudinal sample.

Background And Aims: Research examining how alcohol consumption changed across different socio-demographic groups during the pandemic has largely relied upon convenience samples recruited after the onset of the COVID-19 pandemic. The aim of this study was to measure whether the pandemic shifted alcohol consumption in different gender, age and income groups in Australia.

Design, Setting And Participants: This was a longitudinal study using four waves (2017-20) of the annual Household, Income and Labour Dynamics in Australia (HILDA) Survey to compare pre-pandemic consumption (2017-19) with consumption in 2020. A total of 11 636 participants in Australia aged 15 years and older took part.

Measurements: Participants were asked annually about their alcohol consumption, demographics and income.

Findings: There was a statistically significant increase in alcohol consumption during the first year of the pandemic [incident rate ratio (IRR) = 1.1, 95% confidence interval (CI) = 1.1, 1.1], largely driven by changes in drinking frequency. We found a significant difference in consumption change from pre-COVID-19 to during COVID-19 for participants aged under 55 years compared with those aged over 55 years. In addition, participants aged 15-34 reported less alcohol consumption during the pandemic than those aged 35 years and older. No significant differences were identified across gender and income groups.

Conclusions: Alcohol consumption in Australia increased during the first year of the COVID-19 pandemic. Survey participants aged 55 years and over seemed to be the least impacted by the public health measures introduced during the pandemic, such as the closure of licensed premises.