Evaluation of the minor clinical features of Hanifin and Rajka amongst children with atopic dermatitis, visiting a tertiary care hospital in North Eastern India

Atopic Dermatitis (AD) is a commonly encountered, extremely itchy, chronic and relapsing skin disorder, which is characterized by inflammation in the skin. It typically has its onset in childhood, presenting with eczematous lesions; and can also be associated with personal or family history of “atopy”, usually most often. The criterion put by Hanifin and Rajka, encompassing 4 major plus 23 minor criteria, is not infrequently used as a diagnostic criterion for this disease in a hospital setup; however, the frequency of occurrence of the minor criteria usually varies in the population. The study aims at estimating the frequency of the minor diagnostic criteria of the Hanifin and Rajka in children with AD. This was a hospital-based cross-sectional study, that was conducted on 70 children (less than 18yrs of age) by taking their history, doing clinical and ophthalmological examination and some basic tests. The most common occurrence amongst the minor criteria estimated from our study was xerosis i.e., in 45(64.2%). The other common minor criteria observed were pityriasis alba (42.8%) facial erythema (40%), orbital darkening (37.14%) Early age of onset was seen in children (35.7%). There is variation in the clinical features of AD according to geography and population. The prevalence and severity of the disease are dependent on several factors like ethnicity/race and environment. Hence, it is important for dermatologists to know the usual and common ways the disease presents, in a given population for the diagnosis so as to diagnose and treat the patients at an earlier stage and before significant discomfort.