“…However, there is generally a predominance of men in the study samples (Knapton et al, 2018;Shoham et al, 2015). Lower age is also generally related to a higher level of aggression (Murad, 2017;Toder-Alon et al, 2018), as well as alcohol and drug use (Brandão, Murad, Belmont & Santos, 2020;Reis, Martins, Spaaij & Lopes, 2018) and being single (Murad, 2017;Wann, Lane, Duncan & Goodson, 1998). However, Silva, Freitas, Carvalho, Medeiros and Cardoso (2017) point out that there is still only a limited number of studies that characterize soccer fans in relation to these variables.…”