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Hanna Trzcińska, Grzegorz Przybylski, Bartosz Kozłowski, Sebastian Derdowski
Med Sci Monit 2012; 18(3): CR198-202
Background: Frequent co-existence of bronchial asthma and depression or anxiety is an unquestioned phenomenon. In contrast, little is known about the relationship between the degree of asthma control and the prevalence of depression and anxiety. The aim of this study was to determine the potential relationship between the degree of asthma control and the prevalence of depression and anxiety.
Material/Methods: This study included a group of 128 randomly selected asthmatic individuals with various degree of asthma control. The study was based on a questionnaire survey, using the following tools: the Asthma Control Test, Beck Depression Inventory, and State-Trait Anxiety Inventory (STAI) – X-1 and X-2 questionnaires. All the questionnaires were completed during a single follow-up visit at the clinic.
Results: The occurrence of depression and its severity significantly correlated with the degree of asthma control. Individuals with depression were characterized by a significantly lower degree of asthma control compared to depression-free individuals (p<0.001). The degree of asthma control decreased significantly with increasing severity of depression (R=–0.367; p<0.001). No significant correlation was observed between the degree of asthma control and the levels of trait anxiety (R=–0.095; p=0.295) and state anxiety (R=–0.093; p=0.308).
Conclusions: The prevalence of depression and its severity significantly correlate with the degree of asthma control. Large, standardized multicenter studies of the relationship between the degree of asthma control and the prevalence of depression and other psychopathological symptoms are needed. Furthermore, it seems reasonable to introduce the screening of asthmatics for mental disorders.