title: Development and Validation of a Clinical Scale for the Evaluation of Forearm Skin Photoaging.
abstract: BACKGROUND
  Despite the focus on facial photoaging ratings, there are few classifications developed for forearm skin aging assessment.
  
  
  OBJECTIVE
  To develop and validate a clinical scale for the evaluation of forearm skin aging.
  
  
  METHODS
  Three clinical dermatology faculty members selected, discussed, and appraised the main signs of forearm photoaging. The validation of the resulting scale was performed by 5 assessors who were previously trained to classify 102 photographs of forearms with different degrees of aging. Retests were performed in 15 days.
  
  
  RESULTS
  There was significant correlation between the selected variables and the subjective global aging scale. The developed scale showed high internal consistency (Cronbach's α=0.87) and high correlation with the global photoaging scale (rho=0.92). Inter- and intraobserver final scores showed high agreement.
  
  
  CONCLUSIONS
  A validated clinical photoaging scale for forearms with internal consistency, reliability, and validity was developed.
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil carolzerbini@hotmail.com.
authors.forename: C O Z
authors.initials: CO
authors.lastname: Guimarães
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: E
authors.initials: E
authors.lastname: Bagatin
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: L R S
authors.initials: LR
authors.lastname: Guadanhim
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: F
authors.initials: F
authors.lastname: Sternberg
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: F R
authors.initials: FR
authors.lastname: Picosse
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: G
authors.initials: G
authors.lastname: Nunes
authors.affiliation: Dermatology Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: C
authors.initials: C
authors.lastname: Milanez
authors.affiliation: Dermatology and Radioterapy Department, UNESP, Botucatu, SP, Brazil.
authors.forename: H A
authors.initials: HA
authors.lastname: Miot
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005542:Forearm / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010781:Photography; D015203:Reproducibility of Results; D012867:Skin / Q000473:pathology*; D015595:Skin Aging / Q000473:pathology*; D012871:Skin Diseases / Q000145:classification* / Q000473:pathology*
keywords: aging; classification; forearm; skin aging