. Author manuscript; available in PMC: 2020 Dec 1.

Published in final edited form as: Am J Prev Med. 2019 Dec;57(6):786–791. doi: 10.1016/j.amepre.2019.08.017

Table 3.

Association Between E-cigarette Use Initiation by Wave 2 and Cessation-Related Outcomes Among Smokers With and Without Chronic Medical Conditions

Variable	Any chronic medical condition AOR (95% CI)	No chronic medical condition AOR (95% CI)
Tried to quit smoking/tobacco^a
No e-cigarette initiation by Wave 2	ref	ref
E-cigarette initiation by Wave 2	1.92 (1.42, 2.59)^***	1.81 (1.50, 2.18)^***
Cigarette abstinence at Wave 2^b
No e-cigarette initiation by Wave 2	ref	ref
E-cigarette initiation by Wave 2	1.95 (1.11, 3.43)^*	1.63 (1.17, 2.28)^**
Follow-up evidence based-treatment use^a
No e-cigarette initiation by Wave 2	ref	ref
E-cigarette initiation by Wave 2	1.27 (0.90, 1.79)	1.05 (0.76, 1.46)
At least 50% reduction in cigarettes/day^a
No e-cigarette initiation by Wave 2	ref	ref
E-cigarette initiation by Wave 2	1.13 (0.80, 1.62)	1.13 (0.80, 1.62)

Notes: Boldface indicates statistical significance

^***

p<0.001

^**

p<0.01

p<0.05

Controlling for age, race/ethnicity, sex, education, income, region of residence, baseline cigarettes per day, nicotine dependence.

Controlling for age, race/ethnicity, sex, education, income, region of residence, baseline cigarettes per day, nicotine dependence, and past 12-month use of evidence-based treatment at follow-up.