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Understanding the association between initial experimentation with a tobacco product and subsequent patterns of tobacco use among youth is important to informing prevention activities for youth in the US. We conducted an online survey from August to October 2017 among youth aged 13–18 years. The current analysis focused on respondents reporting initial experimentation with any tobacco product (n = 2,022). Using multinomial logistic regression, we examined the association between first tobacco product tried (cigarettes; cigars including cigarillos, little cigars, and bidis; electronic nicotine delivery systems (ENDS); smokeless and chewing tobacco; or hookah) with subsequent patterns of tobacco use while adjusting for covariates. Of the youth who experimented, 56.8% were non-current tobacco users. Of current tobacco users (n = 934), 13% were exclusive ENDS users, 5.3% exclusive combustible mono-users, 13.4% ENDS plus combustible poly-users, 3.3% combustible product only poly-users, and 8.2% other tobacco poly-users. The most common type of first tobacco product tried was ENDS (44.7%), followed by cigarettes (35.0%) and cigars (8.6%). Those who experimented with combustible tobacco products were less likely to be exclusive ENDS users [Relative Risk Ratio (RRR) = 0.46; 95% CI = 0.28, 0.73 for cigarettes; RRR = 0.32; 95% CI = 0.13, 0.81 for cigars; and RRR = 0.33; 95% CI = 0.14, 0.79 for hookah] when compared to non-current tobacco users (reference group). Tobacco product choices for initial experimentation appear to play a role in subsequent tobacco use patterns among youth. Understanding the reasons behind initial product choice may inform our understanding regarding the reasons for subsequent current tobacco product use, thus informing youth prevention efforts. [ABSTRACT FROM AUTHOR]