| Popis: |
Anxiety disorders are among psychiatric conditions the earliest to manifest, with a median age at onset of 15 years, using retrospective information (WHO ICPE, 2000). As a group, anxiety disorders are frequent and persistent in childhood and adolescence. The prevalence of anxiety disorders in nonrefered children 4-6 years old has been estimated in 6.1% (BriggsGowan et al., 2000), and studies on older children and adolescents have reported lifetime prevalence ranging from 8.3% to 27.0% (Costello et al., 2005). Separation anxiety disorder (SA), specific phobias (SP) and generalized anxiety disorder (GA) are the most common. Left untreated, anxiety disorders tend to have a chronic and unremitting course (Yonkers et al., 2003; Ramsawh et al, 2009) and also increase the risk for adult psychiatric disorders (Pine et al., 1998; Costello et al., 2011). |
