Prevalence of Irritant Contact Dermatitis in Semiconductor Factory Workers Who Occupationally Wore Natural Rubber Finger Cots

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Attasit Rattanarak
Naesinee Chaiear
Jitladda Sakdapipanich
Jinjutha Wiriyanantawong
Phanumas Krisorn


Background and Objective: The semiconductor factory workers who exposed to many irritants such as solvents, acids, alkalis and flux was the high risk of occupational irritant contact dermatitis. This study aimed to estimate the prevalence of the semiconductor factory workers who occupationally wore natural rubber finger cots.irritant contact dermatitis (ICD) in

Methods: A descriptive study was conducted. The study population included 1,218 workers who occupationally wore  natural rubber finger cots. A total of 367 workers were recruited as study samples. The skin symptoms and the associated factors were collected from the medical records and the existing completed questionnaires. Additives containing in finger cots were analyzed by HPLC (High Performance Liquid Chromatography) technique. The descriptive statistics were presented as proportion, mean (SD), median (IQR) and the prevalence were presented as percentage with 95% confidence interval (95%CI).

Results: The prevalence of irritant contact dermatitis in semiconductor factory workers was 11.4% (95%CI 8.2,15.5) 15.3% of workers who wore natural rubber finger cots which were always washed by dish washing liquid was diagnosed ICD  compared to 1 (1.0%) worker who wore natural rubber finger cots which were always washed by hand washing soap. The finger cots analysis by HPLC found 3 leachable rubber additives such as Tetramethylthiuram disulfide (TMTD), Zinc diethyldithiocarbamate (ZDEC) and 2,2 Dibenzthiazyl disulfide (MBTS) from finger cots washed by either hand soap and dish washing liquid, but higher in dish washing liquid washed finger cots.

Conclusion : The prevalence of irritant contact dermatitis in semiconductor factory workers who occupationally wore natural rubber finger cots was 11.4% . The possible agents were rubber additives.


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