Subjects And Methods

This is a cross-sectional, questionnaire-based study that was conducted in Saudi Arabia from January 2019 to August 2019. It was distributed among patients attending the outpatient dermatology and phototherapy clinics at King Khalid University Hospital, Riyadh. In total, 7500 questionnaires were distributed, and valid responders were selected. A simple random sample of 2330 (50% of the valid participants) was involved in data analysis as part of the statistical reliability standard method. This study included patients who agreed to participate; were Saudi; aged between 17 and 65 years old; were on any treatment prescribed by a dermatologist for a month and above; were on any of the following treatment types: phototherapy, injection therapy, topical therapy, and oral therapy; and who were diagnosed with either psoriasis, chronic dermatitis, acne vulgaris, hair growth disorders, or vitiligo.