Is Gianotti–Crosti Syndrome Associated with Atopy? A Case–Control Study and a Postulation on the Intrinsic Host Factors in Gianotti–Crosti Syndrome

Abstract

Objectives

To investigate whether Gianotti–Crosti syndrome (GCS) in children is associated with atopy.

Methods

The setting was two outpatient clinic. Diagnoses of asthma and atopic dermatitis (AD) were made according to internationally accepted diagnostic criteria. Allergic rhinitis, atopic urticaria, and allergic conjunctivitis were diagnosed clinically. Participants were children with GCS diagnosed over the previous 5 years. For any child with GCS, we extracted the record of the subsequent age and sex pair-matched child seen for problems unrelated to the skin as controls.

Results

We retrieved the records of 37 pairs of study and control subjects; 28 (76%) children with GCS and 9 (24%) controls had AD (risk ratio [RR] = 3.11[95% confidence interval {CI} 1.73, 5.73]), 31 (84%) children with GCS and 19 (51%) controls had at least one atopic condition (RR = 1.63 [95% CI 1.13, 2.18]) and 11 (30%) children with GCS and 2 (5%) controls had at least three atopic conditions (RR = 5.50 [95% CI 1.29, 35.35]).

Conclusion

GCS is significantly associated with AD and the presence of atopic conditions.

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