Kathryn A Zug

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BACKGROUND The North American Contact Dermatitis Group (NACDG) tests patients who have suspected allergic contact dermatitis with a broad series of screening allergens, and publishes periodic reports of its data. OBJECTIVE To report the NACDG patch-test results from January 1, 2005, to December 31, 2006, and to compare results to pooled test data from the(More)
OBJECTIVES To determine the frequency of positive and relevant patch tests in children referred for patch testing in North America; to compare results of patch testing children and adults; and to compare our results with international data on contact allergy in children. DESIGN Retrospective cross-sectional analyses of North American Contact Dermatitis(More)
The preservative methylisothiazolinone (MI) is the American Contact Dermatitis Society Contact Allergen of the Year for 2013. Because the use of MI in cosmetics and toiletries in the United States rises, MI exposure also rises. Although it might seem likely that testing with methylchloroisothiazolinone (MCI)/MI would be adequate to pick up contact allergy(More)
BACKGROUND AND DESIGN Patient preferences for health outcomes can be explicitly assessed and expressed in quantitative terms known as utilities. Three standard methods for utility assessment have been used to quantify patient preferences, but these methods have not previously been applied to skin disease. Eighty-seven patients with psoriasis from a tertiary(More)
Sesquiterpene lactones are a large, diverse group of chemicals found in several plant families that cause allergic contact dermatitis. The biological, botanical, allergenic, and structural significance of sesquiterpene lactones is explored as well as the clinical characteristics of cutaneous reactions. The association with UV-light sensitivity and proposed(More)
BACKGROUND Nickel allergy has been studied by contact dermatitis groups around the world, and the frequency of nickel sensitivity has been reported to be decreasing in some populations. OBJECTIVE To review the prevalence of nickel allergy as observed by the North American Contact Dermatitis Group from 1992 to 2004. METHODS The computer database of the(More)
BACKGROUND Allergic contact dermatitis is common in children. Epicutaneous patch testing is an important tool for identifying responsible allergens. OBJECTIVE The objective of this study was to provide the patch test results from children (aged ≤18 years) examined by the North American Contact Dermatitis Group from 2005 to 2012. METHODS This is a(More)
Occupational contact dermatitis to individual wood species from foreign countries, such as Asia, Africa, Central America, and South America, has been described. This report concerns the case of a domestic woodworker who developed allergic contact dermatitis shortly after beginning to work with multiple exotic woods. Patch testing with domestic and exotic(More)
BACKGROUND Relatively little is known about the epidemiology of allergic contact dermatitis in older individuals. OBJECTIVES We sought to determine the frequency of positive and clinically relevant patch test reactions in older individuals (≥ 65 years old) referred for patch testing, and to compare these results with those of adults (≤ 64-19 years) and(More)