Clinical patch test data evaluated by multivariate analysis

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Abstract
The aim of the present study was to evaluate the influence of individual explanatory factors, such is sex, age, atopy, test time and presence of diseased skin, on clinical patch lest results, by application of multivariate statistical analysis. The study population was 2l66 consecutive patients patch tested with the standard series of the International Contact Dermatitis Research Group (ICDRG) by members of the Danish Contact Dermatitis Group (DCDG) over a period of ft months. Fur the 8 test allergens most often found positive (nickel, fragrance‐mix, cobalt, chromate. balsam of Peru, carba‐mix, colophony, and formaldehyde). one or more individual factors were of significance for the risk of being sensitized, except for chromate and formaldehyde it is concluded that patch test results can be compared only after stratification of the material or by multivariate analysis.