Social Media Exposure and Other Correlates of Increased e-Cigarette Use Among Adolescents During Remote Schooling: Cross-Sectional Study.

Correlates of Increased e-Cigarette Use The association between increased e-cigarette use during shelter-in-place and exposure to e-cigarette–related digital content on social media was borderline significant (odds ratio 2.58, 95% CI 0.98‐7.13; P =.06) in the unadjusted analysis ( Table 2 ) and nonsignificant (AOR 2.34, 95% CI 0.71‐8.46; P =.19) after controlling for demographics ( Figure 1 and Table S4 in Multimedia Appendix 1 ).

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The only exception was a statistically significant association in the traditional logistic regression for increased use and e-cigarette use dependence (AOR 1.13, 95% CI 1.01‐1.28; P =.04; Table S6 in Multimedia Appendix 1 ), whereas this result had borderline significance in the primary analysis (AOR 1.12, 95% CI 1.00‐1.25; P =.06; Table S4 in Multimedia Appendix 1 ).

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