An epidemiological comparison between hand eczema and non-hand eczema

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Abstract
Thirty four per cent of 2110 patients with eczema attending a contact dermatitis clinic presented with hand eczema. An epidemiological comparison was made of patients with hand ezema and non-hand eczema (defined as eczema on parts of the body other than the hands). Occupational eczema was significantly more common in the hand eczema than the non-hand eczema group (P = 0.0011). The prevalence of atopy was the same in both groups (13%). The prevalence of irritant contact dermatitis was higher in the hand eczema group (32%) than the non-hand eczema group (13%) (P < 0.0001). The rate of allergic contact dermatitis was lower in the hand eczema group (23%) than the non-hand eczema group (39%) (P < 0.0001). The rate of positive patch test reaction was lower in the hand eczema group (41%) than the non-hand eczema group (56%) (P < 0.0001). Nickel sulphate (8%), cobalt chloride (3%), potassium dichronate (3%), and fragrance mix (4%) were common allergens encountered in hand eczema group. None of these allergens was specifically more prevalent in the hand eczema than the non-hand eczema group. However, the prevalence of allergy to nickel, colophony, epoxy resin and medicaments was significantly higher in the non-hand eczema group.

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