Statistics on Psoriasis
About 2.1 percent of the U.S. population has psoriasis
More than 4.5 million adults in the United States have been diagnosed with psoriasis
Often appears between the ages of 15 and 35, but can develop at any age.Some infants have psoriasis, although this is considered rare
Three percent to 10 percent of the body affected by psoriasis is considered to be a moderate case. More than 10 percent is considered severe. The palm of the hand equals 1 percent of the skin. However, the severity of psoriasis is also measured by how psoriasis affects a person's quality of life. Psoriasis can have a serious impact even if it involves a small area, such as the palms of the hands or soles of the feet.
About 30 percent of people with psoriasis have cases that are considered moderate to severe (generally meaning it covers more than 3 percent of their body)
More than 1.5 million Americans have moderate to severe psoriasis
Severe types of psoriasis can compromise the skin's ability to control body temperature and prevent infections
Psoriasis' impact on the quality of life
75 percent of people with moderate to severe psoriasis report that their disease has a moderate to large impact on their everyday lives:
26 percent alter their normal daily activities
21 percent stop their normal daily activities
40 percent say their psoriasis affects their clothing choices (avoiding dark colors, covering up arms and legs)
36 percent say it affects how they sleep
36 percent report bathing more than normal(based on results of National Psoriasis Foundation 2001 Benchmark Survey on Psoriasis and Psoriatic Arthritis)
Psoriasis may disqualify a person from serving in the U.S. military
About 1 million people in the U.S. population have psoriatic arthritis; that equals about 0.5 percent of the country
Between 10 percent and 30 percent of people with psoriasis develop psoriatic arthritis
Psoriatic arthritis usually develops between the ages of 30 and 50, but it can develop at any time
Generally psoriasis appears before the psoriatic arthritis, but it can develop without the characteristic skin lesions
There are five types of psoriatic arthritis
Psoriasis patients make nearly 2.4 million visits to dermatologists each year
Overall costs of treating psoriasis may exceed $3 billion annually
150,000 to 260,000 cases of psoriasis are diagnosed each year
If one parent has psoriasis, children have a 10 percent to 25 percent chance of developing psoriasis
If both parents have psoriasis, children have a 50 percent chance
Psoriasis affects an estimated 1 percent to 3 percent of the world's population
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