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Table 1 The five most common allergens / irritants in patch testing per series

From: A seven-year retrospective analysis of patch test data in a cohort of patients with contact dermatitis in Sri Lanka

Shoe Series (n-121)

European Baseline Series (n-307)

Substance

Number (%)

Substance

Number (%)

MBTa

38 (44.7)

Nickel (II) sulfate

49 (16.0)

Nickel (II) sulfate

21 (24.7)

PPDa

42 (13.7)

Thiuram mix

16 (18.8)

Potassium dichromate

24 (7.8)

PTBPa

13 (15.3)

Cobalt (II) chloride

20 (6.5)

PPDa

12 (14.1)

Neomycin sulfate

15 (4.9)

  1. aPPD- p-phenylenediamine (PPD), MBT −2-mercaptobenzothiazole, PTBP – 4-tert-butylphenolformaldehyde resin
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BMC Dermatology

ISSN: 1471-5945

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