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Diaminodiphenylmethane Sensitization in north-eastern Italy from 1996 to 2012
F Zuliani1, A Prodi1, A B Fortina2
1Clinical Unit of Occupational Medicine, University of Trieste, Trieste, Italy.
Background:
4,4'-Diaminodiphenylmethane (DDM) is an aromatic amine used as a hardener, insulator and anticorrosive. Exposure implies risk of being sensitized and developing contact dermatitis.
Objective:
The aim of this study was to determine the occurrence of contact sensitization to DDM among patients with contact dermatitis and the role of occupational exposure.
Patients And Methods:
From 1996 to 2012, 24 056 consecutive patients with suspected allergic contact dermatitis were patch tested in north-eastern Italy. Individual characteristics were collected through a standardized questionnaire in eight departments of dermatology and occupational medicine.
Results:
The overall prevalence of DDM sensitization was 2.5% (n = 599) with a decreasing trend in considered years. Trieste area had the higher prevalence of sensitization (3.2%). Mechanics and chemical industry workers had a significant higher risk of being sensitized to DDM.
Conclusion:
DDM sensitization is decreasing in years and is associated with some occupational exposures.
