Diagnostic value of Der p 1 and Der p 2 specific IgE in Dermatophagoides pteronyssinus IgE sensitization.

Objective: To assess the diagnostic performance of Der p 1 and Der p 2 specific IgE (sIgE).

Data Sources: Studies were systematic computerized searches of the PubMed, EMBASE, and Cochrane libraries (published 1966 to September 5, 2015).

Study Selection: Records were screened by title and abstract and then by full-text articles of relevant studies. Eligible studies were selected according to inclusion criteria: (1) all house dust mite allergy diagnosed on the basis of clinical symptoms in combination with a dust mite extract skin prick test result; (2) the inclusion of controls in the study; and (3) enough data to construct the diagnostic 2 × 2 table. True-positive, false-positive, false-negative, and true-negative values were extracted from or calculated for each study. Then the pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were calculated. A summary receiver operating characteristic curve and area under the curve were used to evaluate the overall diagnostic performance.

Results: Seven eligible studies that involved 1040 cases were included in this meta-analysis. The meta-analysis found that detection of Der p 1 or Der p 2 sIgE is of sufficient diagnostic accuracy for use in the diagnosis of Dermatophagoides pteronyssinus IgE sensitization.

Conclusion: Detection of Der p 1 or Der p 2 sIgE is a promising diagnostic tool in the diagnosis of D pteronyssinus IgE sensitization.