News Finding: The litany of emotional issues did not greatly affect nonsmokers.
Paper Finding: This novel 4-group comparison is a critical innovation; with changes in the pattern of tobacco product use in the past several years, new typologies of adolescent tobacco product use have emerged, including both e-cigarette and dual use .
News Context: Vaping and smoking
  
  Teenagers who used prescription drugs to get high and those with more symptoms of depression, social phobia, generalized anxiety disorder, panic disorder, obsessive-compulsive disorder and other emotional issues were more likely to smoke than to vape e-cigarettes. The litany of emotional issues did not greatly affect nonsmokers. On the other hand, adolescents who both vaped and smoked had the poorest mental health, the study found.
Paper Context: This study is the first to comprehensively examine differences in psychiatric profiles between four different groups based on typologies of tobacco product use: (1) non-users; (2) e-cigarette only users; (3) conventional cigarette only users; and (4) dual users. This novel 4-group comparison is a critical innovation; with changes in the pattern of tobacco product use in the past several years, new typologies of adolescent tobacco product use have emerged, including both e-cigarette and dual use . This study's main findings were that: (1) e-cigarette only users reported a level of internalizing mental health problems midway between non-use and conventional cigarette use; and (2) externalizing/substance use comorbidity was extensive and followed an ordered pattern with dual users having the most severe and pervasive comorbidity, followed by single-product users and non-users, respectively.