Author Response to E-cigarettes and Respiratory Disorder: The Broader Research Context.

Association of tobacco product use with chronic obstructive pulmonary disease (COPD) prevalence and incidence in Waves 1 through 5 (2013-2019) of the Population Assessment of Tobacco and Health (PATH) Study. We used the longitudinal data to examine symptom worsening and symptom improvement. In our study, we analyzed cross-sectional and prospective Population Assessment of Tobacco and Health (PATH) Study data from 2014 to 2016 in adults and concluded, "Past and current cigarette smoking drove functionally important respiratory symptoms, while exclusive use of other tobacco products was largely not associated. [Extracted from the article]