The OCD is classified under the group of anxiety disorders and its association with migraine and/or CDH has been also described [9, 15, 17, 18].
OCD is categorized under the group of anxiety disorders in DSM IV.
Second, the clinically anxious sample was rather small and consisted of a heterogeneous group of anxiety disorders.
Comorbid disorders are more common than the "pure" types, while comorbidity between anxiety and depressive disorders in adolescents is greater than within the diagnostic group of anxiety disorders.
With regard to the different diagnostic groups of anxiety disorders, we did partly confirm the strong focus of the BAI on panic symptoms [ 10, 11].
** p < 0.001 The comparison of the GAD-7 scores of the four severity groups of anxiety diagnosed by the HADS-A yielded significant differences between the mean group scores (F = 205.3; DF1 = 3; DF2 = 208; p < 0.001).
Patients with pure anxiety and pure depression were more distressed than the intermediate group of mixed anxiety-depressed patients.
Incidence estimates are derived from the literature and other studies performed by our group (Prevention of anxiety and depression in late life).
There are some promising trials of transdiagnostic cognitive behavioural group treatments of anxiety disorders (15, 16), but to our knowledge, there are no formal studies of this approach to the wider primary care patient population of concern in the present study.
In all three groups, levels of anxiety fell substantially during treatment.
Measures assessed changes in transport usage, purchase of preparatory goods for a pandemic, perceived risk groups, indicators of anxiety, assessed estimated mortality rates for seasonal flu, effectiveness of seasonal flu vaccination, and changes in pork consumption 26% of the respondents were 'very concerned' about being a flu victim (42% Malaysians, 5% Europeans, p <.001).
