A Community Data-Driven Policy Analysis Framework to Promote Tobacco 21 in the United States

Raising the minimum legal age of tobacco sales to 21 (T21) is among a small number of low-cost, population-level interventions that may significantly delay youth tobacco initiation and reduce smoking prevalence. The overarching goal of this study is to develop a community data-driven policy framework in order to 1) optimize the effects of T21 and 2) reduce policy-related health disparities. Evidence from this study will inform states and localities on the implementation and strengthening of existing T21 policies.


Tobacco use (cigarettes, e-cigarettes, cigars, smokeless tobacco, and hookahs)


The researchers are using a quasi-experimental design with difference-in-difference analysis. A multi-level regression analysis and synthetic control method are used to examine youth behaviors in T21 and non-T21 (“control”) regions before and after the policy change.

hands breaking a cigarette in half
Grantee and Partner organizations

University of Nebraska Medical Center College of Public Health

Grant status
In Progress
Principal investigators
Hongying (Daisy) Dai, PhD
Start date
Award amount
24 months

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