Psoriasis Linked to Higher Risk of Depression
By Tara Haelle
THURSDAY, Aug. 20, 2015 (HealthDay News) — People with psoriasis may be twice as likely to experience depression as those without the common skin condition, regardless of its severity, a new study suggests.
“Psoriasis in general is a pretty visible disease,” said study author Dr. Roger Ho, an assistant professor of dermatology at New York University School of Medicine in New York City. “Psoriasis patients are fearful of the public’s stigmatization of this visible disease and are worried about how people who are unfamiliar with the disease may perceive them or interact with them.”
Genetic or biologic factors may also play a role in the link between depression and psoriasis, which requires more research, he said. Either way, the findings mean that all individuals with psoriasis could benefit from screening for depression, Ho said, and their friends and family members should be aware of the connection as well.
The findings were scheduled for presentation Thursday at an American Academy of Dermatology meeting in New York City. They have not yet been published in a peer-reviewed journal and should be considered preliminary.
Most people with psoriasis have red, raised patches of skin covered with silvery-white scales, the researchers noted. These patches usually appear on the scalp, elbows, knees, lower back, hands and feet.
The researchers analyzed the responses of more than 12,000 U.S. adults in the 2009-2012 National Health and Nutrition Examination Survey conducted by the U.S. Centers for Disease Control and Prevention.
Overall, nearly 3 percent of responders reported that they had psoriasis, and about 8 percent had major depression based on their answers to a depression screening assessment. Among those with psoriasis, 16.5 percent had sufficient symptoms for a diagnosis of major depression.
Those with any degree of psoriasis had double the odds of having depression even after taking into account their age, sex, race, weight, physical activity level, alcohol use and history of heart attack, stroke, diabetes and smoking, the researchers said.
Depression is one of several concerns that someone with psoriasis should look out for, said Dr. Delphine Lee, a dermatologist at John Wayne Cancer Institute at Providence Saint John’s Health Center in Santa Monica, Calif.