“…These factors include patient factors (psychopathology, gender, age, history of violence, social and economic status, etc.) (Abderhalden et al, 2002;Ng et al, 2001;Ilkiw-Lavalle & Grenyer, 2003;Jansen et al, 2005;Kraus & Sheitman, 2004;McKenna et al, 2003;Nolan et al, 1999;Owen et al, 1998;Secker et al, 2004), environmental/setting factors (ward size, patient crowding, location within the unit, the time of day, excessive waiting time, untherapeutic ward regime, ward turmoil, etc.) (Abderhalden et al, 2002;Ng et al, 2001;IlkiwLavalle & Grenyer, 2003;McKenna et al, 2003;Owen et al, 1998), and staff factors (low staff-to-patient ratio, inexperience or lack of training, role ambiguity, level of professional education, an inadequate number of staff, etc.)…”