Table 3.
Profile of patch test positivity in the study population with the relevance against individual allergens
| Name of antigen | No. of patients with positive reactions to individual antigens (%) | Relevance of positive patch test reactions |
|---|---|---|
| Nickel sulfate (nickel sulfate hexahydrate) | 49 | Current 45 Old 2 Unknown 2 |
| Potassium bichromate | 28 | Current 17 Old 8 Unknown 3 |
| Cobalt sulfate (Cobalt chloride hexahydrate) | 26 | Current 20 Old 2 Unknown 4 |
| Paraphenylenediamine | 23 | Current 15 Old 7 Unknown 1 |
| Neomycin sulfate | 16 | Current 8 Old 4 Unknown 4 |
| Fragrance mix | 15 | Current 12 Old 3 |
| Mercaptobenzothiazole | 10 | Current 6 Old 1 Unknown 3 |
| Parthenium | 10 | Current 2 Old 2 Unknown 6 |
| Thiuram mix | 10 | Current 3 Old 3 Unknown 4 |
| Formaldehyde | 9 | Current 4 Unknown5 |
| Colophony (colophonium) | 8 | Current 5 Unknown 3 |
| Perubalsam (myroxylon pereirae resin) | 6 | Current 5 Old 1 |
| Paraben mix | 4 | Current2 Old 2 |
| Nitrofurazon | 4 | Unknown 4 |
| Black rubber mix | 3 | Current 2 Unknown 1 |
| Wool alcohol (lanolin) | 3 | Unknown 3 |
| 4-Tert-butylphenolformaldehyde resin | 3 | Current 1 Unknown 2 |
| Epoxy resins | 2 | Current1 Unknown 1 |
| Benzocaine | 2 | Unknown 2 |
| Disperse blue | 2 | Current 1 Unknown 1 |
| Polyethylene glycol | 1 | Current 1 |
| Mercapto mix | 1 | Current 1 |
| Disperse orange | 1 | Unknown 1 |
| Jasmine absolute | 1 | Current 1 |
| Rose oil | 1 | Current 1 |
| Musk mix | 1 | Unknown 1 |
| Triclosan | 1 | Unknown 1 |
| Cetrimide | 1 | Current 1 |
| Sorbic acid | 1 | Unknown 1 |
| Total positive reactions seen with relevance of individual allergens | 242 | Current 154 Old 35 Unknown 53 |