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Related Experiment Videos

Photosensitive psoriasis. An epidemiologic study.

A M Ros1, G Eklund

  • 1Department of Dermatology, Karolinska Hospital, Stockholm, Sweden.

Journal of the American Academy of Dermatology
|November 1, 1987
PubMed
Summary
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An estimated 5.5% of psoriasis patients experience photosensitivity, with symptoms worsening after sun exposure. Photosensitive patients were more likely to have fair skin, hand psoriasis, and a family history of light sensitivity.

Area of Science:

  • Dermatology
  • Photobiology

Background:

  • Psoriasis is a chronic inflammatory skin condition.
  • Photosensitivity, or worsening of skin conditions due to light exposure, can affect psoriasis patients.

Purpose of the Study:

  • To determine the prevalence of photosensitivity in psoriasis patients.
  • To identify factors associated with photosensitivity in this population.

Main Methods:

  • A questionnaire was mailed to 2000 psoriasis patients.
  • Telephone interviews were conducted with self-reported photosensitive patients.
  • Statistical analysis compared photosensitive and non-photosensitive groups.

Main Results:

  • An estimated 5.5% of psoriasis patients exhibit photosensitivity.

Related Experiment Videos

  • Photosensitive patients had a higher prevalence of skin type I, hand psoriasis, hereditary photosensitivity, and advanced age.
  • 43% of photosensitive patients reported a history of polymorphous light eruption.

    • Conclusions:

    • Photosensitivity is a relevant factor in a subset of psoriasis patients.
    • Specific patient characteristics are associated with increased risk of photosensitivity in psoriasis.