Table 1.

Details of the pattern of positive patch test results in both genders with positive relevance of each metal sensitizer

Standard patch test series allergens	Males (N = 1331) n (%)	Females (N = 1130) n (%)	Positive results n (%)	Positive relevance n (%)
Nickel sulfate	176 (13.2)	413 (36.5)	589 (23.9)	524 (89)
Wool alcohols (Lanolin)	15 (1.1)	17 (1.5)	32 (1.3)
Neomycin sulfate	7 (0.5)	12 (1)	19 (0.8)
Potassium dichromate	102 (7.7)	53 (4.7)	155 (6.3)	135 (87)
Caine mix	0 (0)	1 (0.1)	1 (0.04)
Fragrance mix	74 (5.5)	69 (6.1)	143 (5.8)
Colophony	31 (2.3)	5 (0.4)	36 (1.5)
Paraben mix	4 (0.3)	3 (0.3)	7 (0.3)
Negative control	0 (0)	0 (0)	0 (0)
Balsam of Peru	67 (5)	51 (4.5)	118 (4.8)
Ethylenediamine dihydrochloride	8 (0.6)	6 (0.5)	14 (0.6)
Cobalt dichloride	89 (7.9)	135 (12)	224 (9.1)	179 (80)
P-tert-butylphenol formaldehyde resin	29 (2.2)	21 (1.8)	50 (2)
Epoxy resin	11 (0.8)	5 (0.4)	16 (0.6)
Carba mix	12 (0.9)	7 (0.6)	19 (0.8)
Black rubber mix	27 (2)	11 (1)	38 (1.5)
Cl+ Me- isothiazolinone	7 (0.5)	6 (0.5)	13 (0.5)
Quaternium-15	8 (0.6)	3 (0.3)	11 (0.4)
Methyldibromo glutaronitrile	0 (0)	0 (0)	0 (0)
P-Phenylenediamine	129 (9.7)	56 (5)	185 (7.5)
Formaldehyde	26 (2)	20 (1.7)	46 (1.9)
Mercapto mix	10 (0.7)	6 (0.5)	16 (0.6)
Thimerosal	26 (2)	21 (1.8)	47 (1.9)
Thiuram mix	34 (2.5)	21 (1.8)	55 (2.2)
Diazolidinyl urea	2 (0.01)	1 (0.09)	3 (0.1)
Quinoline mix	0 (0)	0 (0)	0 (0)
Tixocortol-21-pivalate	2 (0.01)	3 (0.3)	5 (0.2)
Gold sodium thiosulfate	6 (0.4)	11 (1)	17 (0.7)	11 (65%)
Imidazolidinyl urea	3 (0.2)	3 (0.3)	6 (0.2)
Budesonide	6 (0.4)	5 (0.4)	11 (0.4)
Hydrocortisone-17-butyrate	2 (0.01)	3 (0.3)	5 (0.2)
Mercaptobenzothiazole	3 (0.2)	9 (0.8)	12 (0.5)
Bacitracin	0 (0)	0 (0)	0 (0)
Parthenolide	0 (0)	0 (0)	0 (0)
Disperse blue 106	0 (0)	0 (0)	0 (0)
2-Bromo-2-nitropropane-1,3-diol	12 (0.9)	6 (0.5)	18 (0.7)