Chinese Journal of Dermatology ›› 2015, Vol. 48 ›› Issue (2): 125-127.
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Sheng Nan, Yu Meiwen, Xu Changchun, Yao Xu, Zong Wenkai. Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China Corresponding author: Zong Wenkai, Email: zwk2009kk@gmail.com 【Abstract】 Objective To investigate the prevalence of urticaria among children aged 2 - 6 years in Nanjing city. Methods A questionnaire survey was carried out in children aged 2 - 6 years in 5 main districts of Nanjing City. Results The number of valid questionnaires was 13 610, accounting for 92.8% of total respondents. Among the 13 610 respondents, 1 116 were diagnosed as urticaria, including 565 boys and 551 girls, with the total prevalence rate being 8.54%. No significant difference was observed in the prevalence rate of urticaria between boys and girls (8.49% vs. 8.60%, χ2 = 0.04, P = 0.832) or among children of different age groups (χ2 = 1.84, P = 0.17). The prevalence of urticaria increased with age, and positively correlated with parents′ educational level (rs = 0.96, P = 0.000). Children born in urban areas showed higher prevalence of urticaria than those in rural areas (8.79% vs. 5.56%, χ2 = 13.98, P = 0.000). Conclusions The prevalence of urticaria has increased among children aged 2 - 6 years in recent years. More studies should be carried out to investigate into the pathogenesis and relevant factors of urticaria, so as to facilitate its prevention and treatment.
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