Changing patterns of first e-cigarette flavor used and current flavors used by 20,836 adult frequent e-cigarette users in the USA

Table 5 Logistic regression analysis of the association between first e-cigarette purchases that were tobacco-flavored and fruit/fruit beverage-flavored and Tobacco Use Pathway Group and time of first e-cigarette purchase

Variable	B	OR	95% CI	p
Tobacco-flavored FEP
TUP group
Never smoker e-cigarette users (referent)
Switchers	1.39	4.03	3.26–4.97	< 0.001
Dual users	1.42	4.14	3.26–5.26	< 0.001
Former smoker e-cigarette users	0.85	2.33	1.85–2.93	< 0.001
Time of FEP
> 5 years (referent)
< 12 months	− 1.04	0.35	0.32–0.40	< 0.001
1–3 years	− 0.80	0.45	0.41–0.49	< 0.001
3–5 years	− 0.46	0.63	0.58–0.69	< 0.001
Fruit/fruit beverage-flavored FEP
TUP group
Never smoker e-cigarette users (referent)
Switchers	− 0.85	0.43	0.38–0.49	< 0.001
Dual users	− 0.90	0.41	0.34–0.48	< 0.001
Former smoker e-cigarette users	− 0.55	0.58	0.50–0.67	< 0.001
Time of FEP
> 5 years (referent)
< 12 months	0.89	2.43	2.16–2.72	< 0.001
1–3 years	0.79	2.21	1.99–2.46	< 0.001
3–5 years	0.57	1.76	1.59–1.96	< 0.001

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