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A validated grading scale for forehead lines.

Alastair Carruthers1, Jean Carruthers, Bhushan Hardas

  • 1Department of Dermatology and Skin Sciences, University of British Columbia, Vancouver, British Columbia, Canada. alastair@carruthers.net

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [Et Al.]
|November 22, 2008
PubMed
Summary

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This summary is machine-generated.

A new 5-point Forehead Lines Grading Scale objectively quantifies horizontal forehead rhytides. This reliable photonumeric scale aids clinical research and practice for assessing static and dynamic wrinkles.

Area of Science:

  • Dermatology
  • Aesthetic Medicine
  • Medical Imaging

Background:

  • Horizontal forehead rhytides result from collagen and elastin degradation.
  • Aging skin loses connective tissue support, leading to wrinkles.

Purpose of the Study:

  • Develop a Forehead Lines Grading Scale for objective quantification.
  • Establish the reliability of a photonumeric scale for clinical use.
  • Assess forehead rhytides at rest and with expression.

Main Methods:

  • A 5-point photonumeric rating scale was developed.
  • Quantified static (resting) and dynamic (hyperkinetic) forehead lines.
  • Inter- and intrarater variability assessed using intraclass correlation coefficients.

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Main Results:

  • High inter-rater agreement among experts.
  • Demonstrated linearity in expert judgments via bubble plots.
  • The scale effectively captures forehead line severity.

Conclusions:

  • The 5-point scale reliably quantifies forehead lines.
  • Suitable for assessing patients seeking wrinkle correction.
  • Well-stratified for consistent and accurate rating.