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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Drug Alcohol Depend. 2021 Aug 4;227:108941. doi: 10.1016/j.drugalcdep.2021.108941

Figure 1.

Figure 1.

Distribution of JUUL and Cigarette Dependence Symptom Severity Scores

Note. Unweighted Ns for JUUL, stratified by number of symptoms: 0=1013, 1=206, 2=113, 3=87, 4=57, 5=54, 6=53, 7=49, 8=39, 9=77

Unweighted Ns for Combustible Cigarettes: 0=217, 1=60, 2=27, 3=23, 4=21, 5=19, 6=15, 7=19, 8=15, 9=21

Error bars indicate 95% confidence intervals calculated using the estimated prevalence of one-sample t-test.