Objectives:
The aim of the study was to assess the relationship between symptoms of depression, the level of sense of coherence and the quality of life in patients with allergic diseases.

Methods:
The study involved 50 bronchial asthma patients, 72 seasonal allergic rhinitis, and 48 atopic dermatitis patients. The control group was 50 healthy volunteers. Methods: SF-36, BDI, SOC-29.

Results:
Mean depression values were higher in allergic rhinitis patients and atopic dermatitis patients than in the control group. Patients in the latter group also showed higher rates of depression than those with bronchial asthma. In all study groups, statistically significantly lower values of sense of coherence was demonstrated compared to healthy subjects. There were no differences in the values of sense of coherence, in comparisons between the study groups. In all patient groups, lower values in physical functioning of the quality of life scale were observed compared to the control group. The severity of symptoms of depression in all groups showed negative correlations with quality of life parameters and a sense of coherence. In addition, the SOC value correlated negatively with the parameters of mental functioning of the quality of life scale.

Conclusions:
Patients with atopic dermatitis showed the greatest severity of the depressive symptom. Patients with seasonal allergic rhinitis show a better quality of life than patients with chronic bronchial asthma and patients with atopic dermatitis. Low level sense of coherence in patient suffering from allergic diseases and the occurrence of symptoms of depression can worsen the quality of life.