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Table 4 Favrot’s criteria [5]

From: Canine atopic dermatitis: detailed guidelines for diagnosis and allergen identification

 

Use

Reliability

Set 1:

• Use for clinical studies and adapt required criteria based on the goal of the study.

• 5 criteria:

1. Age at onset <3 years

• If higher specificity is required, 6 criteria should be fulfilled (e.g., drug trials with potential side effects)

 Sens. 85.4 %

2. Mostly indoor

• If higher sensitivity is required, 5 criteria should be fulfilled (e.g., epidemiological studies)

 Spec. 79.1 %

3. Corticosteroid-responsive pruritus

  

4. Chronic or recurrent yeast infections

 

• 6 criteria:

5. Affected front feet

 

 Sens. 58.2 %

6. Affected ear pinnae

 Spec. 88.5 %

7. Non-affected ear margins

8. Non-affected dorso-lumbar area

Set 2:

• Use to evaluate the probability of the diagnosis of canine AD

• 5 criteria:

1. Age at onset < 3 years

• 5 criteria should be fulfilled

 Sens. 77.2 %

2. Mostly indoor

• Do not use alone for diagnosis of canine AD, and rule out resembling diseases

 Spec. 83 %

3. “Alesional” pruritus at onset

• 6 criteria:

4. Affected front feet

 Sens. 42 %

5. Affected ear pinnae

 Spec. 93.7 %

6. Non-affected ear margins

7. Non-affected dorso-lumber area