№;"Patch test preparation";"Conc. in pet. (%)";"Positive reactions n (% of tested; 95% CI)";"Reading criteria of the ICDRG†";"Only late (D7) positive reactions‡ n (% of pos.)";"Evolution of positive reactions§"
"Doubtful (? +) n (% of tested)";"Weak positive (+) n (% of pos.)";"Strong positive (++) n (% of pos.)";"Extreme positive (+++) n (% of pos.)";"Irritant (IR) n (% of tested)";"Decrescendo  n (% of pos.)";"Plateau n (% of pos.)";"Crescendo  n (% of pos.)"
1;"Nickel sulfate hexahydrate";5.0;"31 (32.6; 23.4–43.0)";0;"5 (16.1)";"11 (35.5)";"15 (48.4)";"1 (1.1)";"1 (1.1)";"1 (3.2)";"17 (54.8)";"13 (41.9)"
2;"Palladium (II) chloride";2.0;"17 (17.9; 10.8–27.1)";"1 (1.1)";"4 (23.5)";"9 (52.9)";"4 (23.5)";0;0;"2 (11.8)";"10 (58.8)";"5 (29.4)"
3;"Cobalt (II) chloride hexahydrate";1.0;"11 (11.6; 5.9–19.8)";"2 (2.1)";"2 (18.1)";"8 (72.7)";"1 (9.1)";"2 (2.1)";0;"3 (27.2)";"2 (18.2)";"6 (54.5)"
4;"Copper (II) sulfate pentahydrate";2.0;"8 (8.4; 3.7–15.9)";0;"4 (50.0)";"3 (37.5)";"1 (12.5)";0;0;"2 (25.0)";"4 (50.0)";"2 (25.0)"
5;"Potassium dichromate";0.5;"7 (7.4; 3.0–14.6)";"2 (2.1)";"3 (42.9)";"4 (57.1)";0;0;"1 (1.1)";"1 (14.3)";"2 (28.6)";"4 (57.1)"
6;"Titanium (IV) oxalate hydrate";5.0;"7 (7.4; 3.0–14.6)";0;"4 (57.1)";"3 (42.9)";0;"20 (21.1)";0;"3 (42.9)";"4 (57.1)";0
7;Zinc;2.5;"4 (4.3; 1.2–10.5)";0;"1 (25.0)";"3 (75.0)";0;0;0;"1 (25.0)";"2 (50.0)";"1 (25.0)"
8;Titanium;10.0;0;;;;;;;;;
9;"Titanium dioxide";10.0;0;;;;;;;;;
10;"Titanium (III) nitride";5.0;0;;;;;"1 (1.1)";;;;
11;Molybdenum;5.0;0;;;;;;;;;
12;"Aluminum (III) chloride hexahydrate";2.0;0;;;;;;;;;
13;"Zirconium dioxide";0.1;0;;;;;;;;;
14;"Zirconium (IV) chloride";1.0;0;;;;;;;;;