Background:
The use of tobacco products is a significant public health problem, especially among adolescents and young adults.

Objective:
The aim of the study was to analyze the exposure to various types of marketing activities of these products during the last 30 days among Polish youth.

Methods:
The cross-sectional study was carried out in 2020 on a sample of secondary school students aged 15–18 years (n=16712), representative of the Polish population, using the CAWI method. In order to estimate the relationship between the independent variables and the outcome variables, the Bayesian multivariate logistic regression was used in the R program using the brms library.

Results:
It was observed that a very significant relationship [ln(BF)<2.3] with exposure to tobacco marketing activities among Polish adolescents differs depending on the type of product. Exposure to promotional activities of traditional cigarettes has a very significant gender relationship [ln(BF)=9.22]. Girls were more exposed than boys. However, in the case of heated tobacco, it is the age [ln(BF)=16.69] and the size of the place of residence [ln(BF)=23.59]. The oldest respondents and residents of cities over 0.5 million inhabitants were most often exposed. Other factors, such as the type of school attended by young people and the province of residence, were not related. In particular, a very significant relationship between gender and exposure to promotion by celebrities or influencers of regular cigarettes [ln(BF)=2.69] and e-cigarettes [ln(BF)=5.39] was demonstrated, and a significant relationship in the case of heated tobacco [ln(BF)=2.07].

Conclusions:
Despite the limitations in promoting tobacco products, Polish youth are still exposed to this type of practice. It seems that special attention should be paid to marketing activities carried out indirectly through social media. Actions are needed to more effectively limit this type of action towards young people.