Correlates of outcome for atopic dermatitis.
BACKGROUND
The worldwide incidence and prevalence of atopic dermatitis (AD) are increasing. Few good studies have addressed AD in terms of the factors affecting disease prognosis.


OBJECTIVE
To identify significant correlates of persistent AD because this would be clinically valuable information.


METHODS
Potential correlates of AD, including race, onset age, age of solid food introduction, breastfeeding, sinopulmonary infections, other atopic diseases, peripheral eosinophilia, total IgE level, and eosinophilic cationic protein levels, were investigated in 177 patients aged 5 to 18 years. Correlates were compared with AD remission vs nonremission status.


RESULTS
A total of 133 patients (75.1%) were not in remission at the age of 5 years or older and were, thus, classified as having persistent AD. Patients with histories of peanut allergy (odds ratio [OR], 2.92; 95% confidence interval [CI], 1.30-6.55), egg allergy (OR, 2.71; 95% CI, 1.17-6.30), or dust mite allergy (OR, 4.02; 95% CI, 1.84-8.82) were significantly more likely to have persistent AD than those without these factors. There was a trend toward increased odds of persistence in those with peripheral eosinophilia (P = .06) and decreased odds of persistence in those with frequent sinopulmonary infections (OR, 0.51; 95% CI, 0.25-1.03).


CONCLUSIONS
Egg, peanut, and dust mite allergies are significant correlates of AD persisting beyond school age. There may also be increased odds in those with peripheral eosinophilia and decreased odds in those with frequent sinopulmonary infections. This highlights the importance of assessing these correlates in patients with AD and modifying the correlates that can be modified. Further studies on whether modification of these correlates and/or early aggressive AD management improves outcome are needed.
Horwitz
Alexandra A
AA
Division of Allergy and Clinical Immunology, Nemours Biomedical Research, Alfred I. duPont Hospital for Children, Wilmington, Delaware 19899, USA.
Hossain
Jobayer
J
Yousef
Ejaz
E
D000293:Adolescent; D017668:Age of Onset; D000818:Animals; D001249:Asthma / Q000150:complications; D001942:Breast Feeding / Q000706:statistics & numerical data; D002648:Child; D002675:Child, Preschool; D003876:Dermatitis, Atopic / Q000150:complications / Q000175:diagnosis*; D021181:Egg Hypersensitivity / Q000150:complications; D004802:Eosinophilia / Q000150:complications; D005260:Female; D005512:Food Hypersensitivity / Q000150:complications; D006801:Humans; D006967:Hypersensitivity / Q000150:complications; D008297:Male; D016017:Odds Ratio; D021183:Peanut Hypersensitivity / Q000150:complications; D011379:Prognosis; D039981:Pyroglyphidae / Q000276:immunology; D044469:Racial Groups / Q000706:statistics & numerical data; D012141:Respiratory Tract Infections / Q000150:complications; D012189:Retrospective Studies; D006255:Rhinitis, Allergic, Seasonal / Q000150:complications; D012882:Skin Tests