Available studies reported
high prevalence rates of aggression, ranging from 0.4 to 2.4 incidents of aggression per day across (forensic) child and adolescent psychiatric units.
Across all sports, female athletes had a significantly
higher prevalence rate for depressive symptoms than men, 28 percent compared to 18 percent.
In contrast, studies that reported a higher mean IQ were associated with
higher prevalence rates of obsessive — compulsive disorder and separation anxiety disorder.
It is likely that the prevalence of adjustment disorders (11 %), which is rarely assessed in general population surveys, significantly contributed to the
overall higher prevalence rate of mental disorders in this population of patients with cancer.
Some studies have reported
much higher prevalence rates (15 — 43 %) in cats that have their urinary tract defence mechanisms compromised by the effects of other diseases and / or by the treatment [2].
South Africa has
the highest prevalence rates for both men (60.9 %) and women (43.7 %).
Breslow noted that her group had expected
a high prevalence rate, however, she emphasized that the data referred to potential, not actual, prevalence.
However, repetitive or complex traumatic events, such as neglect, have
a higher prevalence rate and can alter a person's psychobiological development in critical periods [56].
High prevalence rates of aggression during adolescence and associated adjustment difficulties for perpetrators and victims highlight the need for effective violence prevention programs.
The treatment of aggressive and oppositional behavioral disturbances in children and adolescents presents a particular challenge for the clinical practice, as these disorders have
high prevalence rates, often persist from childhood to adolescence and are usually difficult to treat.