Y Guo1,2, H Zhang1,2, Q Liu3, F Wei4, J Tang5, P Li6, X Han7, X Zou8, G Xu9, Z Xu10, W Zong11, Q Ran12, F Xiao13, Z Mu7, X Mao14, N Ran14, R Cheng1,2, M Li1,2, C Li1,2, Y Luo5, C Meng8, X Zhang3, H Xu12, J Li6, P Tang6, J Xiang15, C Shen10, H Niu4, H Li1,2, J Shen1,2, C Ni1,2, J Zhang1,2, H Wang15, L Ma10, T Bieber16, Z Yao1,2. 1. Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China. 2. Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China. 3. Department of Dermatology, Shanxi Children's Hospital, Taiyuan, Shanxi, China. 4. Department of Dermatology, Dalian Children's Hospital, Dalian, Liaoning, China. 5. Department of Dermatology, Hunan Children's Hospital, Changsha, Hunan, China. 6. Department of Dermatology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China. 7. Department of Dermatology, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China. 8. Department of Dermatology, Hubei Maternity and Child Health Hospital, Wuhan, Hubei, China. 9. Department of Community Health and Family Medicine, School of Public Health, Shanghai Jiaotong University, Shanghai, China. 10. Department of Dermatology, Beijing Children's Hospital, Capital Medical University, Beijing, China. 11. Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, Jiangsu, China. 12. Department of Dermatology, Chengdu Women's and Children's Central Hospital, Chengdu, Sichuan, China. 13. Institute of Dermatology and Department of Dermatology, No.1 Hospital, Anhui Medical University, Hefei, Anhui, China. 14. Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA. 15. Department of Pediatric Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China. 16. Department of Dermatology and Allergy, University of Bonn, Bonn, Germany.
Abstract
BACKGROUND: Atopic dermatitis (AD) is the most common skin disorder in infancy. However, the diagnosis and definite significance of infantile AD remains a debated issue. OBJECTIVE: To analyse the phenotypes of AD in infancy, to establish diagnostic criteria and to estimate the prevalence of this condition in China. METHODS: This is a multicentric study, in which 12 locations were chosen from different metropolitan areas of China. Following careful and complete history-taking and skin examination, the definite diagnosis of AD was made and the severity based on the SCORAD index was determined by local experienced dermatologists. Based on the detailed phenotyping, the major and representative clinical features of infantile AD were selected to establish the diagnostic criteria and evaluate their diagnostic efficacy. RESULTS: A total of 5967 infants were included in this study. The overall point prevalence of AD was 30.48%. The infantile AD developed as early as at the second month of life, and its incidence peaked in the third month of life at 40.81%. The proportion of mild, moderate and severe AD was 67.40%, 30.57% and 2.03%, respectively. The most commonly seen manifestations in the infantile AD were facial dermatitis (72.07%), xerosis (42.72%) and scalp dermatitis (27.93%). We established the novel diagnostic criteria of infants, which included: (i) onset after 2 weeks of birth; (ii) pruritus and/or irritability and sleeplessness comparable with lesions; and (iii) all two items above with one of the following items can reach a diagnosis of AD: (i) eczematous lesions distributed on cheeks and/or scalp and/or extensor limbs, and (ii) eczematous lesions on any other parts of body accompanied by xerosis. CONCLUSIONS: In China, the prevalence of AD in infancy is 30.48% according to clinical diagnosis of dermatologists. The novel Chinese diagnostic criteria for AD in infants show a higher sensitivity and comparable specificity.
BACKGROUND:Atopic dermatitis (AD) is the most common skin disorder in infancy. However, the diagnosis and definite significance of infantile AD remains a debated issue. OBJECTIVE: To analyse the phenotypes of AD in infancy, to establish diagnostic criteria and to estimate the prevalence of this condition in China. METHODS: This is a multicentric study, in which 12 locations were chosen from different metropolitan areas of China. Following careful and complete history-taking and skin examination, the definite diagnosis of AD was made and the severity based on the SCORAD index was determined by local experienced dermatologists. Based on the detailed phenotyping, the major and representative clinical features of infantile AD were selected to establish the diagnostic criteria and evaluate their diagnostic efficacy. RESULTS: A total of 5967 infants were included in this study. The overall point prevalence of AD was 30.48%. The infantile AD developed as early as at the second month of life, and its incidence peaked in the third month of life at 40.81%. The proportion of mild, moderate and severe AD was 67.40%, 30.57% and 2.03%, respectively. The most commonly seen manifestations in the infantile AD were facial dermatitis (72.07%), xerosis (42.72%) and scalp dermatitis (27.93%). We established the novel diagnostic criteria of infants, which included: (i) onset after 2 weeks of birth; (ii) pruritus and/or irritability and sleeplessness comparable with lesions; and (iii) all two items above with one of the following items can reach a diagnosis of AD: (i) eczematous lesions distributed on cheeks and/or scalp and/or extensor limbs, and (ii) eczematous lesions on any other parts of body accompanied by xerosis. CONCLUSIONS: In China, the prevalence of AD in infancy is 30.48% according to clinical diagnosis of dermatologists. The novel Chinese diagnostic criteria for AD in infants show a higher sensitivity and comparable specificity.
Authors: A L Bosma; A Ascott; R Iskandar; K Farquhar; J Matthewman; M W Langendam; A Mulick; K Abuabara; H C Williams; P I Spuls; S M Langan; M A Middelkamp-Hup Journal: J Eur Acad Dermatol Venereol Date: 2022-02-25 Impact factor: 9.228