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Clustering the clinical course of chronic urticaria using a longitudinal database: Effects on urticaria remission

Authors
Ye, YM  | Yoon, J | Woo, SD | Jang, JH  | Lee, Y  | Lee, HY | Shin, YS  | Nahm, DH  | Park, HS
Citation
Allergy, asthma & immunology research, 13(3). : 390-403, 2021
Journal Title
Allergy, asthma & immunology research
ISSN
2092-73552092-7363
Abstract
Purpose: Little is known about the clinical course of chronic urticaria (CU) and predictors of its prognosis. We evaluated CU patient clusters based on medication scores during the initial 3 months of treatment in an attempt to investigate time to remission and relapse rates for CU and to identify predictors for CU remission. Methods: In total, 4, 552 patients (57.9% female; mean age of 38.6 years) with CU were included in this retrospective cohort study. The K-medoids algorithm was used for clustering CU patients. Kaplan-Meier survival analysis with Cox regression was applied to identify predictors of CU remission. Results: Four distinct clusters were identified: patients with consistently low disease activity (cluster 1, n = 1, 786), with medium-to-low disease activity (cluster 2, n = 1, 031), with consistently medium disease activity (cluster 3, n = 1, 332), or with consistently high disease activity (cluster 4, n = 403). Mean age, treatment duration, peripheral neutrophil counts, total immunoglobulin E, and complements levels were significantly higher for cluster 4 than the other 3 clusters. Median times to remission were also different among the 4 clusters (2.1 vs. 3.3 vs. 6.4 vs. 9.4 years, respectively, P < 0.001). Sensitization to house dust mites (HDMs; at least class 3) and female sex were identified as significant predictors of CU remission. Around 20% of patients who achieved CU remission experienced relapse. Conclusions: In this study, we identified 4 CU patient clusters by analyzing medication scores during the first 3 months of treatment and found that sensitization to HDMs and female sex can affect CU prognosis. The use of immunomodulators was implicated in the risk for CU relapse.
Keywords

DOI
10.4168/AAIR.2021.13.3.390
PMID
33733635
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
Ajou Authors
남, 동호  |  박, 해심  |  신, 유섭  |  예, 영민  |  이, 영수  |  장, 재혁
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