Diagnostic criteria for atopic dermatitis: a systematic review

Area of Science:

• Dermatology
• Clinical Epidemiology

Background:

• Atopic dermatitis (AD) presents with diverse dermatological manifestations.
• Despite numerous diagnostic criteria, a consensus on AD definition remains elusive.
• Valid diagnostic criteria are crucial for reliable and reproducible clinical studies.

Purpose of the Study:

• To systematically review and summarize evidence on the validity of diagnostic criteria for atopic dermatitis (AD).

Main Methods:

• Comprehensive literature search of Medline, Embase, and Cochrane databases.
• Utilized the Quality Assessment of Diagnostic Accuracy tool (QUADAS) for study evaluation.
• Results were synthesized and presented using receiver operating characteristic (ROC) plots.

Main Results:

• Twenty articles yielded 27 validation studies for various AD diagnostic criteria.
• The U.K. diagnostic criteria demonstrated the widest range of validation studies (19 studies).
• Sensitivity and specificity varied significantly across different criteria, with U.K. criteria showing 10%-100% sensitivity and 89.3%-99.1% specificity.

Conclusions:

• The U.K. diagnostic criteria are the most extensively validated among those reviewed.
• Significant variability in the number and methodological quality of validation studies was observed.
• Enhanced methodological rigor and standardized, well-validated criteria are essential for future AD research.