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BioMed Research International
Volume 2016 (2016), Article ID 2568301, 6 pages
http://dx.doi.org/10.1155/2016/2568301
Research Article

Prevalence and Clinical Features of Atopic Dermatitis in China

1Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
2Department of Dermatology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China

Received 10 July 2016; Revised 25 September 2016; Accepted 13 October 2016

Academic Editor: Rachid Tazi-Ahnini

Copyright © 2016 Xin Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. The epidemiology of atopic dermatitis (AD) in Chinese outpatients is yet to be clarified. Objectives. To investigate population-based prevalence and clinical features of AD in Chinese outpatients. Methods. A multicenter cross-sectional study was conducted in outpatients with eczema or dermatitis from 39 tertiary hospitals in 15 provinces. Results. This study included 682 patients diagnosed with AD, with the mean age of years and the median course of years. AD patients had more severe itching (30.4% versus 13.8%, ) and clinically suspected bacterial infection (21.7% versus 16.1%, ) than those of other types of dermatitis. Older patients were more susceptible to have a history of flexion dermatitis (), bacterial infection (), and severe itching (). Outpatients with clinically suspected bacterial infection had 3.53-fold increased risk of AD than those without it (). The morbidity rate of AD in the (20–25°N) region is 2.86 times higher than that in the (40–45°N) region [OR (95% CI): 0.352 (0.241–0.514), ]. Conclusions. AD is characterized by unique clinical/demographic features. Bacterial infection and latitude region may have an impact on the incidence of AD in China.