Fig. 1

Hookah Smoking Transitions from Wave 1 (2013) to Wave 2 (2014) of the PATH Study. Transitions among current hookah only use reported at Wave 1 were categorized into 4 categories: a No transition in hookah use (i.e., hookah use at Wave 2 as used at Wave 1); b Continued hookah and transitioned to other tobacco product(s) (i.e., hookah plus other tobacco product(s) use at Wave 2); c Quit hookah and transitioned to other tobacco product(s) (i.e., no hookah use but other tobacco product(s) use at Wave 2); and d Quit all tobacco use (i.e., no use of hookah or any tobacco product at Wave 2). Estimates were weighted to represent the U.S. adult population