Associations between frequency of cigarette and alternative tobacco product use and depressive symptoms: A longitudinal study of young adults.

The association between cigarette use and depression has been documented in many studies. Fewer studies have examined other tobacco products such as electronic cigarettes (e-cigarettes) and hookah that are used by young adults. This study examined whether increased frequency of use of these products was associated with depressive symptoms in a cohort of n = 5236 Texas college students followed from 2014 to 2017.