Risk Factors of Onset Time and Persistence of Atopic Dermatitis in Children Younger Than 5 Years | PracticeUpdate

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Risk Factors of Onset Time and Persistence of Atopic Dermatitis in Children Younger Than 5 Years

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Background

The prevalence of atopic dermatitis (AD) is high among children, with development of AD occurring during early childhood in most affected children and some having a chronic disease course. Risk factors for AD in this group remain undefined.

Objectives

We analyzed the medical records of children with AD under 5 years of age. We summarized characteristics of the natural course of AD in these children and explored relevant risk factors of AD in infancy and early childhood.

Methods

Using a self-developed questionnaire, we investigated 716 children under 5 years of age who were treated for AD at the Dermatology Department of the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China. We conducted the study from October 2021 to September 2022 using telephone and on-site interviews with the children's parents. In parental interviews, data were gathered on neonatal diseases, comorbidities, parental allergy history, maternal history of tobacco and alcohol use, and basic infant information at birth. Some children were tested for serum total immunoglobulin E (IgE) before this study.

Results

Neonatal hyperbilirubinemia, neonatal respiratory distress syndrome (NRDS), neonatal infection, and infection during childhood had a significant impact on persistent symptoms and the onset of first symptoms in children with AD (P < 0.05). Allergic diseases as common comorbidities with AD, which had earlier onset of AD related to more obvious disease activity (P < 0.05). Parental history of allergy was also significant in AD (P < 0.05). Serum total iIgE levels in children with AD showed an impact on the clinical course of AD; neonatal hyperbilirubinemia and NRDS may affect IgE levels (P < 0.05). Persistent AD had a significant effect on the physical growth of children with height/length for age Z score ≤3 and weight for height/length Z score ≤3 (P < 0.05).

Conclusions

Early adverse events in infants, infection before onset, and susceptibility to infection may affect the onset and clinical course of childhood AD. Serum total IgE levels affect the progression of AD. Persistent AD in childhood may have a slight impact on children's physical growth.

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Benjamin Hidalgo-Matlock
Skin Care Physicians of Costa Rica

Clinica Victoria en San Pedro: 4000-1054
Momentum Escazu: 2101-9574

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