Prevalence of Contact Sensitization in Patients with Atopic Dermatitis: A Retrospective Study from China
- 1Department of Allergy, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, China
- 2Dermatology and Plastic Surgery Center, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
Abstract
The prevalence of contact sensitization in atopic dermatitis (AD) has been controversial and remains poorly studied in the Chinese population. This retrospective study aimed to assess the prevalence and differences in contact sensitization between AD and non-AD patients undergoing patch testing in China. We analysed clinical records of 3,487 patients who underwent patch testing from 2018 to 2023, including 146 AD patients and 3,341 non-AD patients. Results demonstrated that contact sensitization prevalence was similar in AD and non-AD groups (82.88% vs 84.71%, p=0.55). Common allergens included nickel, methylisothiazolinone, dodecyl gallate and cobalt chloride hexahydrate in both groups. AD patients showed higher positive reactions to hexahydro-1,3,5-tris-(2-hydroxyethyl) triazine (11.11% vs 5.85%, p<0.01), methyldibromo glutaronitrile (10.27% vs 4.97%, p<0.01), quaternium-15 (7.53% vs 3.68%, p=0.02), ethylenediamine dihydrochloride (3.42% vs 0.72%, p<0.01), propylene glycol (2.86% vs 0.60%, p=0.01) and 2-bromo-2-nitropropane-1,3-diol (2.74% vs 0.78%, p=0.03), compared to non-AD, particularly females. Contact sensitization prevalence increased with age in both groups. This study showed that the prevalence of contact sensitization was comparable between the AD and non-AD groups in China. However, AD patients exhibited heightened sensitivity to formaldehyde releasers and propylene glycol, commonly found in moisturizers.
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BibTeX
@article{wang2026prevalence,
title = {{Prevalence of Contact Sensitization in Patients with Atopic Dermatitis: A Retrospective Study from China}},
author = {Ao Wang and Chengbin Ye and Chengwen Fei and Yingfang Li and Yuelong Ma and Ting Cao and Yue Wu and Yanchun Cheng and Fei Hao and Ying Zou},
journal = {Acta Dermato-Venereologica},
year = {2026},
month = nov,
doi = {10.2340/actadv.v106.adv-2026-0617},
url = {https://doi.org/10.2340/actadv.v106.adv-2026-0617},
note = {CC BY-NC 4.0},
}
RIS
TY - JOUR
TI - Prevalence of Contact Sensitization in Patients with Atopic Dermatitis: A Retrospective Study from China
AU - Ao Wang
AU - Chengbin Ye
AU - Chengwen Fei
AU - Yingfang Li
AU - Yuelong Ma
AU - Ting Cao
AU - Yue Wu
AU - Yanchun Cheng
AU - Fei Hao
AU - Ying Zou
PY - 2026
DA - 2026/11/04
JO - Acta Dermato-Venereologica
DO - 10.2340/actadv.v106.adv-2026-0617
UR - https://doi.org/10.2340/actadv.v106.adv-2026-0617
AB - The prevalence of contact sensitization in atopic dermatitis (AD) has been controversial and remains poorly studied in the Chinese population. This retrospective study aimed to assess the prevalence and differences in contact sensitization between AD and non-AD patients undergoing patch testing in China. We analysed clinical records of 3,487 patients who underwent patch testing from 2018 to 2023, including 146 AD patients and 3,341 non-AD patients. Results demonstrated that contact sensitization prevalence was similar in AD and non-AD groups (82.88% vs 84.71%, p=0.55). Common allergens included nickel, methylisothiazolinone, dodecyl gallate and cobalt chloride hexahydrate in both groups. AD patients showed higher positive reactions to hexahydro-1,3,5-tris-(2-hydroxyethyl) triazine (11.11% vs 5.85%, p<0.01), methyldibromo glutaronitrile (10.27% vs 4.97%, p<0.01), quaternium-15 (7.53% vs 3.68%, p=0.02), ethylenediamine dihydrochloride (3.42% vs 0.72%, p<0.01), propylene glycol (2.86% vs 0.60%, p=0.01) and 2-bromo-2-nitropropane-1,3-diol (2.74% vs 0.78%, p=0.03), compared to non-AD, particularly females. Contact sensitization prevalence increased with age in both groups. This study showed that the prevalence of contact sensitization was comparable between the AD and non-AD groups in China. However, AD patients exhibited heightened sensitivity to formaldehyde releasers and propylene glycol, commonly found in moisturizers.
SN - 0001-5555
SN - 1651-2057
ER -