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Sexual minority youth are more likely to use nicotine relative to heterosexual youth. The minority stress model posits these disparities are partly due to unique stress (i.e., minority stress) specific to their stigmatized identities. However, there is a dearth of research exploring the fine-grained dynamic interplay between minority stressors, mediating processes, and nicotine use in sexual minority youth’s daily lives and natural environment. We leveraged ecological momentary assessment over a 30-day monitoring period to test the mediating effects of craving and negative and positive affect on the momentary associations between minority stressors and subsequent nicotine use among sexual minority youth who were active nicotine users and recruited from the community. Participants were 85 nicotine users, ages 15–19 years old ( M  age = 17.96, SD = 1.10; 56.6% cisgender female; 56.6% bisexual; 73.5% non-Hispanic White) and half (51.8%) were daily nicotine users. Results indicated that exposure to a minority stressor was associated with momentary elevations in nicotine craving and negative affect and decreases in positive affect. Nicotine craving and positive affect were also associated with greater probability of subsequent nicotine use. The associations between minority stressors and subsequent nicotine use were mediated through craving and positive, but not negative affect. Our findings provide the first ecological momentary assessment evidence of these associations among sexual minority youth and help support and advance both addictions and sexual minority-specific models (e.g., minority stress) of nicotine use among youth.

Momentary Associations Among Minority Stress, Craving, Affect, and Nicotine Use Among Sexual Minority Youth