Second, we estimated multivariable linear regression models of cigarettes smoked per day, conditional on the frequency of vaping (categorized as every-day, some-days, ever but no longer, never), psychological distress (categorized as NPD, MPD, and SPD), the interaction of vaping and psychological distress (these variables were demeaned, or centered so that main effect coefficients could be directly interpreted 26 ), and other covariates described above
Forms like nicotine gum or lozenges allow for oral absorption, potentially causing less direct stomach impact than other methods
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Cognitive Behavioral Therapy for Nicotine Use during Addiction Recovery Everyday Health explains that Cognitive Behavioral Therapy (CBT), one of the most popular methods of counseling to help clients overcome the psychological damage wrought by drinking and drug abuse, can also help clients quit smoking
This makes them one of the safer nicotine delivery options