Patch test allergen Lithuania Sweden p- value
N Positive reaction n, (%) 95% CI N Positive reaction n, (%) 95% CI
Potassium dichromate 0.5% pet 214 13 (6.1%) 2.8 - 9.2 428 12 (2.8%) 1.4 – 4.6 0.052
p-Phenylenediamine 1.0% pet 214 9 (4.2%) 1.4 - 6.6 428 10 (2.3%) 0.7 – 3.3 0.21
Thiuram mix 1.0% pet 214 1 (0.5%) 0 – 2.3 428 12 (2.8%) 1.4 – 4.6 0.07
Neomycine sulphate 20.0% pet 214 4 (1.9%) 0.1 – 3.9 428 1 (0.2%) 0.1 – 1.9 0.052
Cobalt (II) chloride hexahydrate 0.5% pet 214 16 (7.5%) 4.4 – 11.6 428 27 (6.3%) 3.8 – 8.3 0.62
Quaternium-15 1.0% pet 214 5 (2.3%) 0.1 – 3.9 428 3 (0.7%) 0.1 – 1.9 0.12
Nickel (II) sulphate hexahydrate 5.0 % pet 214 55 (25.7%) 20.1 – 31.2 428 81 (18.9%) 15.3 – 22.7 0.052
Quinoline mix 6.0% pet 214 2 (0.9%) 0 – 2.3 428 0 - 0.1
Colophonium 20.0% pet 214 10 (4.7%) 2.1 – 7.9 428 14 (3.3%) 1.4 – 4.6 0.38
Paraben mix 16.0% pet 214 2 (1.0%) 0 – 2.3 428 1 (0.2%) 0.1 – 1.9 0.26
Black rubber mix 0.6% pet 214 3 (1.4%) 0 – 2.3 428 2 (0.5%) 0.1 – 1.9 0.34
Sesquiterpene lactone mix 0.1% pet 214 1 (0.5%) 0 – 2.3 428 3 (0.7%) 0.1 – 1.9 1
Mercapto mix 2.0% pet 214 1 (0.5%) 0 – 2.3 428 3 (0.7%) 0.1 – 1.9 1
Epoxy resin 1.0% pet 214 3 (1.4%) 0 – 2.3 428 4 (0.9%) 0.1 – 1.9 1
Myroxylonpereirae resin 25.0% pet 214 10 (4.7%) 2.1 – 7.9 428 24 (5.6%) 3.8 – 8.3 0.7
4-tert-Butylphenol formaldehyde  resin 1.0% pet 214 2 (0.9%) 0 – 2.3 428 6 (1.4%) 0.1 – 1.9 0.7
Fragrance mix II 14.0% pet 214 4 (1.9%) 0.1 – 3.9 427 17 (3.9%) 2.1 – 5.9 0.24
Formaldehyde 1.0% aq. 213 13 (6.1%) 2.8 – 9.2 428 9 (2.1%) 0.7 – 3.3 0.01
Fragrance mix I 14.0% pet. 213 12 (5.7%) 2.8 – 9.2 427 14 (3.3%) 1.4 – 4.6 0.2
Phenolformaldehyde  resin 1.0% pet 214 1 (0.5%) 0 – 2.3 414 6 (1.4%) 0.1 – 1.9 0.43
Diazolidinyl urea 2.0% aq. 214 4 (1.9%) 0.1 – 3.9 428 6 (1.4%) 0.1 – 1.9 0.74
Methylchloroisothiazolinone/Methylisothiazolinone 0.02% aq. 214 22 (10.3%) 5.9 – 14.0 428 21 (4.9%) 2.9 – 7.1 0.01
Amerchol L-101 50.0% pet 214 0   428 17 (4.0%) 2.1 – 5.9 0.001
Caine mix II 10.0% pet 214 1 (0.5%) 0 – 2.3 428 4 (0.9%) 0.1 – 1.9 0.67
Lichen acid mix 0.3% pet 214 2 (0.9%) 0 – 2.3 428 3 (0.7%) 0.1 – 1.9 1
Tixocortol-21-pivalate 0.1% pet 214 1 (0.5%) 0 – 2.3 428 7 (1.6%) 0.7 – 3.3 0.28
Toluensulfonamide formaldehyde resin 10.0% pet 214 2 (0.9%) 0 – 2.3 428 0 - 0.11
Budesonide 0.01% pet 214 2 (0.9%) 0 – 2.3 428 2 (0.5%) 0.1 – 1.9 0.6
Methyldibromoglutaronitrile 0.5% pet 214 2 (0.9%) 0 – 2.3 428 8 (1.9%) 0.7 – 3.3 0.51
Hydroxyisohexyl 3-cyclohexene carboxaldehyde, 5.0% pet. 214 3 (1.4%) 0 – 2.3 394 5 (1.3%) 0.1 – 1.9 1
N: Number tested to specific allergen; n- number of positive patients
Table 2: Frequencies of positive reactions to the Swedish baseline series as age- and sex-matched percentage with 95% confidence intervals for proportions and p values for the differences between Lithuania and Sweden.