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. 2022 Nov 7;5(11):e2240671. doi: 10.1001/jamanetworkopen.2022.40671

Figure 4. Use of e-Cigarettes Within 5 Minutes of Waking.

Figure 4.

Includes e-cigarette users who used no other tobacco products. After remaining stable from 2014 to 2017 (P = .74 by interrupted time series analysis), the proportion of users who consumed their first e-cigarette within 5 minutes of waking rapidly increased more than 10-fold (P = .002 for slope change following 2017 by interrupted time series analysis). Error bars indicate SEs.