The diagnoses of patients applied to dermatology outpatient clinics before and after COVID-19 pandemic

In this supplement, we have presented "the change in the diagnostic distribution of the patients who applied to dermatology outpatient clinics before and after COVID-19 pandemic" All patients were enrolled from the Department of Dermatology and Venereology between February 15 and July 09, 2020, consisting of 120 workdays. We formed the months within these dates from organizing them into 4 weeks consisting of twenty following workdays, except for weekends and public holidays. So, a 24-week period comprising of 8 weeks before the COVID-19 and 16 weeks after the first confirmed case was obtained. Data such as age, sex, dates, the first three of the ICD-10 (International Classification of Diseases-10th Revision) codes, and treatment methods were received from the electronic registration database. These data were anonymized providing that individual uniqueness was kept in applications to polyclinics. Patients with repeated presentations for control or follow-up were distinguished. Then, recurrent applications with the corresponding diagnosis in ten days after the first medical examination were excluded.