• M Kristina Wharton, Sabrina Islam, Melissa H Abadi, Pallav Pokhrel, and Sharon Lipperman-Kreda.
• Prevention Research Center, Pacific Institute for Research and Evaluation, Berkeley, California; School of Public Health, University of California, Berkeley, Berkeley, California. Electronic address: mwharton@PREV.org.
• Am J Prev Med. 2023 Mar 1; 64 (3): 385392385-392.

IntroductionShelter-in-place orders altered facilitators and barriers to tobacco use (e.g., outlet closures, restricted social gatherings). This study examined whether the duration of time in shelter in place and compliance with different shelter-in-place orders influenced adolescent cigarette and E-cigarette use and how the use may differ by demographic characteristics.MethodsShelter-in-place policy data obtained from government websites were merged with cross-sectional 2020 survey data on adolescents in California. Treatment variables included the proportion of time in shelter in place and self-reported compliance with shelter-in-place orders (for essential businesses and retail spaces and social and outdoor contexts). Multilevel logit models for dichotomous past 6-month cigarette and E-cigarette use and multilevel negative binomial regression models for past 6-month frequency of use were used. Moderation analyses were conducted on demographic measures. The sample included 1,196 adolescents (mean age=15.8 years, age range=13-19 years, 49.2% female, 50.0% White). Analyses were conducted in 2022.ResultsNo associations were found between the proportion of time in shelter in place and outcomes. Shelter-in-place compliance with essential business and retail space orders was associated with lower odds of using cigarettes and E-cigarettes in the past 6 months. Compliance with social and outdoor context-related orders were associated with lower odds of using E-cigarettes and fewer days using cigarettes and E-cigarettes. Being aged ≥18 years moderated the associations between essential business/retail space and social/outdoor context-related shelter-in-place compliance orders and past 6-month frequency of cigarette smoking.ConclusionsFindings support tailored interventions for less compliant and older adolescents for future pandemic mitigation measures.Copyright © 2022 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

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