Table 1.

Item questions and statements for variables measured

Variable	Item question/statement
Cigarette smoking	Do you currently smoke tobacco products such as cigarettes?
E-cigarette use	“Do you know of electronic cigarettes?”
Current E-cigarette use	“Are you currently using electronic cigarettes?”
Recent cannabis consumption	“During the last 30 days, on how many days did you take cannabis? (___days/30)”
Cannabis vaping	“Which of the following substances did you inhale with your electronic cigarette?”
E-Cigarette intentions	“In the future, do you intend to use the electronic cigarette?”
Intentions for continued use of E-cigarettes	“For how much longer do you intend to use the electronic cigarette?”
Anxiety	“During the past month, how often have you felt anxious?”
Depression	“During the past month, how often have you felt depressed?”
Loneliness	“During the past month, how often have you felt lonely?”
Stress	“During the past month, how often have you felt stressed?”
E-cigarette use to relieve anxiety	“Does the e-cig relieve anxiety, nervousness?”
E-cigarette use to relive stress	“I use[d] the electronic cigarette… – to deal with stress”