“…Sixteen studies published between 2007 and 2019 fulfilled the inclusion criteria. Three were conducted in Spain ( Ruiz-Palomino et al , 2011 ; Celma et al , 2018 ; Pérez et al, 2018 ), two in the UK ( Brammer et al , 2007 ; Raub and Blunschi, 2014 ), two in Belgium ( De Roeck et al , 2014 ; Closon et al , 2015 ), two in Poland ( Kowal and Roztocki, 2015 ; Zientara et al , 2015 ), two in Greece ( Vlachos et al , 2013 ; Tsourvakas and Yfantidou, 2018 ) and one in each of Portugal ( Gaudencio et al , 2017 ), Cyprus ( Hadjimanolis and Boustras, 2013 ), Lithuania ( Vveinhardt et al , 2017 ) and the Netherlands ( Wisse et al , 2018 ). One study was carried out in more than one European country ( Jain et al , 2011 ).…”