Psoriasis is a common, chronic autoimmune disease affecting more than eight million Americans, causing painful, thick, red patches on the skin that often itch and bleed. It also has profound effects on health-related quality of life, and in moderate to severe cases, it carries an increased risk of heart attack, stroke, and premature death. It is not contagious, and while it is treatable, there is currently no cure.
"Although it's widely recognized that the appearance of psoriasis can negatively impact patients' social, professional, and intimate relationships, we wanted to quantify the perceptions patients with psoriasis face on a daily basis in order to understand how pervasive they are," said the study's senior author Joel M. Gelfand, MD MSCE, a professor of Dermatology and Epidemiology at Penn. Rebecca L. Pearl, PhD, an assistant professor of Psychology in Psychiatry, was the lead author of the study.
Researchers - Amazon - Mechanical - Turk - MTurk
Researchers used Amazon Mechanical Turk (MTurk), a web-based data collection service, to survey people about their perceptions of individuals with psoriasis. They also sent the survey directly to several hundred medical students. In all, 198 laypeople responded on MTurk and 187 medical students completed the emailed survey. All participants were shown images of people with psoriasis as well as close up photos of psoriasis lesions.
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