[Adjustment disorders with anxiety. Clinical and psychometric characteristics in patients consulting a general practitioner].

BACKGROUND: The DSM-IV and ICD-10 descriptions of adjustment disorders are broadly similar. Their main features are the following: the symptoms arise in response to a stressful event; the onset of symptoms is within 3 months (DSM-IV) or 1 month (ICD-10) of exposure to the stressor; the symptoms must be clinically significant, in that they are distressing and in excess of what would be expected by exposure to the stressor and/or there is significant impairment in social or occupational functioning (the latter is mandatory in ICD-10); the symptoms are not due to another axis I disorder (or bereavement in DSM-IV); the symptoms resolve within 6 months, once the stressor or its consequences are removed. Adjustment disorders are divided into subgroups based on the dominant symptoms of anxiety, depression or behaviour. Adjustment disorder with anxiety (ADA) is a very common diagnosis in primary care, liaison and general psychiatry services but we still lack data about its specificity as a clinical entity. Current classifications fail to provide guidance on distinguishing these disorders from normal adaptive reactions to stress.

METHOD: Ninety-seven patients with ADA according DSM-IV were recruited in this primary care study and compared with 30 control subjects matched for age and sex. The diagnosis was made according to the MINI questionnaire completed with a standardized research of stressful events and an assessment of anxiety symptoms using different scales: the Hamilton Anxiety rating Scale (HAM-A), the Hospital Anxiety and Depression scale (HAD), The Penn-State Worry Questionnaire (PSWQ), the Positive and Negative Emotionality scale, 31 items (EPN-31 scale) and the State-Trait Anxiety Inventory (STAI-S).

RESULTS: Life events in relation to work were the most frequent (43%). In terms of symptomatology, results showed that ADA is associated with a level of anxiety close to those obtained in other anxiety disorders, particularly GAD, in relation to general symptoms (physical and somatic) as well as anxious rumination and negative emotions.

CONCLUSION: Further research is needed to better understand the disorder and clarify its frontiers, which still remain a controversial issue with regard to the homeostatic response to stress and other types of anxiety disorders. The results of our study suggest that this sub syndromic entity should be recognized and adequately treated, especially in general practice where it is very common.