Survey on prevalence of atopic dermatitis in 0-6 year-old children in Tianjin
Zeng SanWu; Coenraads, P.J.; Tang NaiJun; Ji LiMing; Gao WenXin; Xi Dan; Jin JingJi; Wei WenGuo
Chinese Journal of Dermatology 39(4): 184-186
In this study, the prevalence and associated risk factors for atopic dermatitis (AD) among children aged 0-6 years residing in rural and urban areas of Tianjin, China, were evaluated. All subjects were chosen by cluster sampling from the kindergarten schools in Tianjin. Questionnaires were designed based on the International Study of Asthma and Allergies (ISAAC) and were distributed to the children's parents through their teachers. Overall, 3749 questionnaires were returned, of which 3708 were valid. The response rate was 82.7% in total, 79.3% in rural areas and 84.9% in urban areas. The age and gender distribution were similar in both urban and rural areas. The prevalence rate of AD in these children was 2.9% in total, and it was higher in the urban areas as compared to the rural areas (3.5% vs 2.4%, Chi 2=3.98, P<0.05). The prevalence of AD was not associated with history of immunization or family income, while a history of allergic diseases appeared to be a contributory factor for AD. Thus, the overall prevalence of AD in Tianjin is 2.9%, with a prevalence rate of 3.5% in urban areas and 2.4% in rural areas.