Correction: E-cigarette puff topography instruction to enhance switching among COPD patients who smoke

Eleanor L. S. Leavens^1*Theodore L. Wagener²Leah Lambart¹Matthew S. Mayo³Lexie Brown³Edward Ellerbeck¹Sandra A Billinger³Branden Comfort³Jennifer Woodward³Brent Sear³Spencer Beaman³Lisa Sanderson Cox¹Nicole L. Nollen¹

• ¹School of Medicine, University of Kansas Medical Center, Kansas City, United States
• ²The Ohio State University, Columbus, United States
• ³The University of Kansas Medical Center, Kansas City, United States

When the original text contained incorrect information, to preserve the scientific record, please include that text when editing the below templates. For example:There was a mistake in the Funding statement, an incorrect number was used.The correct number is "2015C03Bd051.". The publisher apologizes for this mistake.The original version of this article has been updated. There was a mistake in table 1 as published. The data on cigarette dependence is incorrect. The corrected table 1 appears below. Note. *One participant missing all baseline demographic information. CPD = cigarettes per day. 1 Two participants marked "some other race, ethnicity, or origin". One participant preferred not to say.The original version of this article has been updated. Adding/removing textThe measure of cigarette dependence was listed incorrectly within the methods section. A correction has been made to the section [Methods, Measures, Baseline smoking characteristics]: "Baseline smoking characteristics. Baseline smoking history included cigarettes per day, cigarette dependence 24 , menthol use, and number of past year quit attempts."The original version of this article has been updated.The data associated with baseline cigarette dependence was incorrect. A correction has been made to the section [Results, Baseline smoking characteristics]: "Baseline smoking characteristics. Participants reported smoking an average of 18.9 cigarettes per day (SD = 10.5) and showed significant symptoms of dependence (M = 57.2; SD = 13.7); 31.1% (n = 14) reported menthol use. At baseline, 48.9% (n = 22) participants reported a past year 24-hour quit attempt. Among those, participants reported an average of 2.8 (SD = 2.5) attempts. Baseline smoking characteristics by study condition are included in Table 1."The original version of this article has been updated.