We conducted modeled outcomes that led to the extraction of crude coefficients (Model 1) and adjusted coefficients (Model 2, adjusting for age, sex, race, ethnicity, normalized cotinine, and site), which were used to estimate the associations between the outcomes and tobacco product use across the time points
The ratio between them determines vapor production, throat hit, and which devices the liquid works in
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JMIR mHealth and uHealth
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Funding This study is a part of the first authors thesis and that there are no funding resources for the research