The odds ratio for successful quitting for the e-cigarette group compared to subjects who used no cessation aid was 1.38 (95% confidence interval, 1.08-2.93).
b. Menthol
The Rest of the Story
The CDC's statement is wrong on its face. If there is reputable evidence from former smokers that e-cigarettes helped them quit smoking, then there is indeed conclusive scientific evidence that e-cigarettes "can work" as a cessation aid.
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