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Related Experiment Videos

Skin phototyping in Asian Australians

D G Stanford1, K E Georgouras, E A Sullivan

  • 1Dermatology Centre, Liverpool Hospital, New South Wales, Australia.

The Australasian Journal of Dermatology
|May 1, 1996
PubMed
Summary

Many Asian Australians report fair skin types and show varied UV sensitivity. Further research is needed to determine if current skin typing systems accurately identify UV-sensitive individuals within this population.

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Area of Science:

  • Dermatology
  • Photobiology
  • Human Genetics

Background:

  • Skin phototype assessment is crucial for understanding UV radiation effects.
  • Asian populations exhibit diverse responses to ultraviolet (UV) exposure.
  • Existing skin typing systems may not fully capture the spectrum of UV sensitivity in all ethnic groups.

Purpose of the Study:

  • To assess skin phototypes in Asian Australians using self-reporting and objective measures.
  • To investigate the range of UV sensitivity, including erythema, melanogenesis, and pigment darkening.
  • To evaluate the adequacy of current skin typing systems for Asian Australians.

Main Methods:

  • A self-reporting questionnaire was used to assess skin phototype in 257 Asian Australians.
  • Objective phototesting measured minimal erythema dose (MED), minimal melanogenic dose (MMD), and minimal immediate pigment darkening dose (MIPD) in 50 subjects.

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  • Data analysis focused on identifying UV-sensitive subgroups and assessing the spectrum of UV responses.

    • Main Results:

    • Approximately 15% of Asian Australians surveyed reported having skin types I or II (very fair skin).
    • Phototesting confirmed the presence of a UV-sensitive group and a broad spectrum of UV sensitivity within the study population.
    • Individual responses to UV exposure varied significantly, indicating a wide range of susceptibility.

    Conclusions:

    • A notable proportion of Asian Australians possess skin types traditionally considered highly UV-sensitive.
    • Phototesting validates that Asian Australians exhibit a diverse range of UV sensitivity, challenging simple classification.
    • Further studies are required to ascertain if the Fitzpatrick skin typing system effectively identifies UV-sensitive individuals among Asian Australians and to explore potential differences in UV response compared to Caucasians.