Study design, setting and participants
The Gulhane Asthma and Allergic Rhinitis Study (GAARS) is a
cross-sectional study established in 2011 in Ankara, Turkey. We
recruited 510 consecutive children aged 5 to 17 who presented to the
Pediatric Allergy and Asthma Unit of Gulhane Military School of Medicine
and received a diagnosis of AR between 2011 and 2017. The study was
approved by the institutional review board of Gulhane Military School of
Medicine and written informed consent was obtained from parents. Details
of the study protocol can be found elsewhere(15).