Abstract: Objective:To screen the contact-allergens with patch test in Nanjing. [WT5”HZ]Methods:〖WT5”BZ〗 Forty domestic allergens were prepared according to TRUE Test standard patch testing series（24）and the criterion provided by the international contact dermatitis research group, and on the base of literature review. Four hundred and forty-three patients of contact dermatitis were enrolled into the study and were tested with TRUE Test patch testing series and domestic patch test to compare the positivity rates between the two tests. Results: The positivity rate of domestic allergens was lower than that of TRUE Test patch testing series (73% & 81.7%)，with a significant difference (P<0.05). When tested with the same12 allergens, the positivity rate was lower in domestic allergens than in TRUE Test patch testing series. Apart from 24 common-used allergens, another 16 domestic allergens had higher positivity rate (might be common allergens in Nanjing).Conclusion:Except twenty four domestic allergens mentioned in the TRUE Test standard patch testing series,another sixteen allergens can be enrolled in the screening allergen in Nanjing city.

Key words: TRUE Test, domestic allergens, patch test