Allergen sensitization affected the change trend of prevalence of symptoms of rhinitis coexisting with wheeze among adolescents in Guangzhou City from 1994 to 2009
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AbstractBackground
Few studies have assessed the time trends of prevalence of symptoms of rhinitis (SR) with wheezing and their associations in Chinese adolescents.

Objective
To explore the trend of prevalence of SR with wheezing and allergen sensitization in adolescents during the past 15 years.

Methods
A total of 6928 adolescents aged 13–14 years in 2009 were recruited for the study using the Phase III Protocol of the International Study of Asthma and Allergic disease in Childhood (ISAAC) and allergic sensitization to seven inhalant allergens in 2531 was assessed by skin prick test in 2010. The results were compared to those obtained in the Phase I (1994/95) and III (2001/02) ISAAC studies.

Results
The prevalence of ‘SR ever’ and ‘current symptoms of rhino-conjunctivitis’ increased from 46.3% and 8.7% in 1994 to 53.2% and 11.1% in 2001 (p < 0.001), respectively, and remained stable at 52.6% and 10.4% in 2009 (p > 0.05). The prevalence of ‘SR ever and wheeze ever’ and ‘SR ever and current wheeze’ increased from 6.2% and 3.4% in 1994 to 8.6% and 4.8% in 2001 (p < 0.001) to 10.9% and 5.9% in 2009 (p < 0.05). The sensitization rate to common inhaled allergens was higher in 2010 than in 2002 (p < 0.001). Sensitization to house dust mites (HDMs) was associated with increases in the prevalence of SR (OR, 2.06–2.86), especially with coexistence of wheeze (OR, 6.07–7.43).

Conclusion
The prevalence of symptoms of rhinitis and coexistence with wheezing has increased significantly since 1994. Sensitization to HDMs is the main risk factor associated with this increase.
Acceptance Date21/02/2017
All Author(s) ListYan Chen, Hongyu Wang, Gary W.K. Wong, Nanshan Zhong, Jing Li
Journal namePediatric Allergy and Immunology
Year2017
Month5
Day17
Volume Number28
Issue Number4
PublisherJohn Wiley and Sons Ltd.
Place of PublicationGermay
Pages340 - 347
ISSN0905-6157
eISSN1399-3038
LanguagesEnglish-United States
Keywordsinhalative allergens, epidemiology of asthma, epidemiology of rhinitis, prevalence, questionnaires, skin prick tests, risk factors

Last updated on 2020-27-11 at 02:05