Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/120401
Title: Sensitization to isothiazolinones in the Spanish Contact Dermatitis Registry (REIDAC): 2019–2021 epidemiological situation
Authors: Hernández Fernández, Carlos Pelayo 
Borrego Hernando, Leopoldo 
Mercader García, Pedro
Giménez Arnau, Ana María
Sánchez Pérez, Javier
Silvestre Salvador, Juan Francisco
González Pérez, Ricardo
Sanz Sánchez, Tatiana
Sánchez Gilo, Araceli
Melé Ninot, Gemma
Zaragoza Ninet, Violeta
Miquel Miquel, Francisco Javier
Carrascosa Carrillo, José Manuel
Córdoba Guijarro, Susana
Gatica Ortega, María Elena
Ruiz González, Inmaculada
Serra Baldrich, Esther
Tous Romero, Fátima
Rodríguez Serna, Mercedes
Pastor Nieto, María Antonia
Pérez Feal, Patricia
Hervella Garcés, Marcos
de Vega Martínez, Marina
García Doval, Ignacio
UNESCO Clasification: 32 Ciencias médicas
320106 Dermatología
Keywords: Benzisothiazolinone
Contact Dermatitis
Methylchloroisothiazolinone/Methylisothiazolinone
Methylisothiazolinone
Octylisothiazolinone, et al
Issue Date: 2022
Journal: Contact Dermatitis 
Abstract: Contact Dermatitis published by John Wiley & Sons Ltd.Background: Current frequency and risk factors for sensitization to methylisothiazolinone (MI), methylchloroisothiazolinone/methylisothiazolinone (MCI/MI), benzisothiazolinone (BIT) and octylisothiazolinone (OIT) in Spain are not well known. Objectives: To study the frequency of sensitization, risk factors and simultaneous sensitization between the four isothiazolinones. Materials and Methods: We analysed all 2019–2021 consecutive patients patch-tested with MI (0.2% aq.), MCI/MI (0.02% aq.), BIT (0.1% pet.) and OIT (0.1% pet) within the Spanish Contact Dermatitis Registry (REIDAC). Results: A total of 2511 patients were analysed. Frequencies of sensitization were: any isothiazolinone 15.7%, MI 6.8%, MCI/MI 4.8%, BIT 3.5% and OIT 0.5%. MI and MCI/MI sensitization was associated with being occupationally active, hand dermatitis, detergents and age over 40. BIT sensitization was associated with leg dermatitis and age over 40. About one in nine MI-positive patients were positive to BIT, whereas one in five BIT-positive patients were positive to MI. Conclusions: Sensitization to MI, MCI/MI and BIT is still common in Spain, while sensitization to OIT is rare. Currently, sensitization to MI and MCI/MI seems to be occupationally related. Although its origin is unknown, sensitization to BIT is more frequent in patients aged over 40 years. Simultaneous sensitization between MI and BIT is uncommon.
URI: http://hdl.handle.net/10553/120401
ISSN: 0105-1873
DOI: 10.1111/cod.14251
Source: Contact Dermatitis[ISSN 0105-1873], (Enero 2022)
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