Psychiatric Comorbidity in Patients with Psoriasis, Vitiligo, Acne, Eczema and Group of Patients with Miscellaneous Dermatological Diagnoses

Abstract

Background: Dermatological conditions can be associated with high psychiatric comorbidity. Several studies reported high rates of depression and anxiety particularly for specific dermatological disorders such as psoriasis and acne. Aim: The aim of this study was to compare the rates of psychiatric symptoms in patients with psoriasis, acne, vitiligo, and eczema versus patients who had other dermatological conditions; and to compare each dermatological group versus healthy control subjects. Methods: This prospective cross-sectional study was conducted in dermatology outpatient clinics in Khartoum. Hospital Anxiety and Depression Scale (HADS) was used to assess symptoms of anxiety (HADS-A) and depression (HADS-D). ICD-10 criteria were used for clinical psychiatric diagnosis. Tabulated results were analyzed using Chi-square test. Significance was set at P P = 0.0062), vitiligo (P = 0.0054), acne (P = 0.0103) and eczema (P = 0.0359) compared with healthy subjects. Similarly, HADS-A scores above the cut off points were significantly higher in patients with psoriasis (P P = 0.0001), acne (P = 0.0143) and eczema (P = 0.0281) compared with healthy subjects. No significant difference between the control group and patients with other dermatologic conditions regarding both HADS-D and HADS-A scores. Using ICD-10 criteria for clinical psychiatric diagnoses indicated that 52.3% of dermatology patients had an associated ICD-10 diagnosis; most commonly anxiety disorders (28.6%), and depression (21.9%). ICD-10 diagnoses of anxiety disorders included: OCD (13.3%) generalized anxiety disorder (5.7%), panic disorder (4.8%), phobic anxiety disorder (3.8%) and post-traumatic stress disorder (0.95%). Conclusion: Dermatological conditions are associated with high rates of psychiatric comorbidity. Screening for anxiety and depressive symptoms may be helpful for early diagnosis and management of associated psychiatric symptoms.