Prevalence, incidence and course of eczema on the hands and forearms in a sample of the general population |
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Authors: | H. Lantinga J. P. Nater P. J. Coenraads |
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Affiliation: | Occupational Dermatology, University Hospital, Postbox 30,001, 9700 RB Groningen, The Netherlands |
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Abstract: | In 1979, the inhabitants of a geographically defined area were examined for skin disorders of the hands and forearms. In 1982 this cohort was invited for re-examination. In persons with eczema, patch testing was performed. Irritant factors were found to play a rôle in 73% of the cases, whereas a contact allergy could be detected in 30%. The must frequent allergens were nickel sulphate (20%), potassium dichromate (6%), land cobalt chloride (4%). In some persons with a definite history of allergy to metals, no positive patch test with nickel, chromate or cobalt could be obtained; other mechanisms may be involved. Significantly more positive patch tests were found among persons with an eczema of longer than 2 years duration compared with persons, with eczema present for a shorter period of time, indicating that many cases of eczema are primarily of irritant nature, but later complicated by sensitisation. In 41%, the eczema was healed. A poor healing tendency was observed in those with a combination or irritant and allergic eczema. Relatively few ascribed healing to medical treatment. |
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Keywords: | Eczema ill hands prevalence irritant dermatitis allergic contact dermatitis |
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