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Table 1 Diagnostic criteria for AD [18,19,20]

From: Atopic dermatitis

Major criteria
Patient must have
 • An itchy skin condition (or parental/caregiver report of scratching or rubbing in a child)
Minor criteria
Plus three or more of the following minor criteria
 Older children/adults
  • History of itchiness in skin creases (e.g., folds of elbows, behind the knees, front of ankles, around the neck)
  • Personal history of asthma or allergic rhinitis
  • Personal history of general dry skin in the last year
  • Visible flexural dermatitis (i.e., in the bends or folds of the skin at the elbow, knees, wrists, etc.)
  • Onset under age 2 years
 Children < 4 yearsa
  • History of itching of the cheeks
  • History of atopic disease in a first-degree relative
  • Eczema of cheeks, forehead and outer limbs
  1. aEarly onset not always diagnostic in children under 4 years of age