Abstract:
BACKGROUND:Nonallergic rhinitis (NAR) is characterized by nasal symptoms similar to allergic rhinitis (AR) without an IgE-mediated immune response. Limited data are available on the natural history of NAR in its progression toward AR, particularly in children. This study evaluates the development of AR in children who were previously diagnosed with NAR. METHODS:Children with the diagnosis of NAR during the period of 2005-2007 were reevaluated in 2010. Nasal symptoms, disease severity, comorbidities, rescue medication scores (RMSs), and skin-prick test to aeroallergens were assessed. RESULTS:We recruited 175 children with an early diagnosis of NAR. The median age was 5.7 years, 62.9% were boys and 45.7% had family history of atopy. At reevaluation, 41% of children with previously diagnosed NAR developed sensitization to aeroallergens and were reclassified as having AR. The most frequent aeroallergen sensitization was Dermatophagoides pteronyssinus (59.7%), followed by Dermatophagoides farinae (54.2%) and American cockroach (38.9%). Children who developed AR had more nasal/eye symptoms, higher severity, and RMSs than children who did not develop AR. The predictors of developing AR were persistent nasal symptoms (adjusted odds ratio [OR], 8.9; 95% CI, 3.2-24.6), nasal itching (adjusted OR, 3.4; 95% CI, 1.2-9.5), triggered by house dust (adjusted OR, 4.3; 95% CI, 1.6-11.9) and animal danders (adjusted OR, 15.8; 95% CI, 3.3-76.1), and family history of atopy (adjusted OR, 6.0; 95% CI, 2.3-15.9). CONCLUSION:Children with NAR who had family history of atopy, persistent nasal symptoms, and symptoms triggered by aeroallergens should be reevaluated periodically for the development of AR. This study was part of the clinical trial NCT01068808 registered in www.clinicaltrials.gov.
journal_name
Am J Rhinol Allergyjournal_title
American journal of rhinology & allergyauthors
Veskitkul J,Vichyanond P,Visitsunthorn N,Jirapongsananuruk Odoi
10.2500/ajra.2013.27.3839subject
Has Abstractpub_date
2013-01-01 00:00:00pages
43-7issue
1eissn
1945-8924issn
1945-8932journal_volume
27pub_type
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