Abstract
BACKGROUND: The COVID-19 pandemic has impacted the sexual health and well-being of individuals, directly through risk of contracting COVID-19, and indirectly through government lockdowns. Government restrictions were especially strict and long-lasting in Australia, they also varied by state, offering an interesting opportunity to study the impacts of varying restrictions. This study compares the impact of the COVID-19 pandemic and resulting restrictions on chlamydia treatment prescriptions during 2020, through to July 2021 between different states and demographic groups in Australia. METHODS: The rate of prescriptions per 100,000 population filled each month from January 2017 to July 2021 from Australia's Pharmaceutical Benefits Scheme for Azithromycin with a restricted indication to treat Chlamydia trachomatis was used to measure chlamydia treatment. The impact of COVID-19 lockdowns was modeled using an interrupted time-series Poisson regression model. RESULTS: The data included 520,025 prescriptions to treat chlamydia, averaging 37.5 prescriptions per month per 100,000 population. Prescriptions declined 26% in April to May 2020 when initial COVID-19 lockdowns began in Australia; prescriptions increased in the following months but remained on average 21% below prepandemic (2017-2019) levels through to July 2021. Prescriptions declined the most in 1 Australian state, Victoria, both in the initial lockdown and the following period; generally, states with more COVID-19 cases saw bigger reductions in prescriptions. CONCLUSIONS: This is the first study to examine how treatment for chlamydia in Australia was impacted by the COVID-19 pandemic and restrictions not only in the immediate-term, but also ongoing up to July 2021, providing important information for planning for sexual health services in future pandemics.