What question did this study set out to answer?

To assess changes in COVID-19 vaccination rates before and after the announcement of a state-sponsored lottery incentive relative to national trends.

July 2, 2021JAMAOpen Access

Lottery-Based Incentive in Ohio and COVID-19 Vaccination Rates

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Comparative study observes COVID-19 vaccination rates in eligible populations, highlighting the influence of lottery incentives on public uptake.

To assess changes in COVID-19 vaccination rates before and after the announcement of a state-sponsored lottery incentive relative to national trends.
Analyzed population-level COVID-19 vaccination rates before and after the lottery incentive announcement.
Used national vaccination rates as a comparative control to account for simultaneous adolescent vaccine eligibility expansion.
Tracked post-announcement changes in vaccination rates relative to broader national trends.
Controlled for the confounding influence of the expansion of vaccine indications to younger populations.

Walkey et al. (2021) studied this question.

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Comparative study observes COVID-19 vaccination rates in eligible populations, highlighting the influence of lottery incentives on public uptake.