biostudies-literatureUnknown87(5)Bizjak M<h4>Background</h4>The European baseline series (EBS) of contact allergens is subject to change. An allergen is considered for inclusion when routine patch testing of patients with suspected contact dermatitis results in ≥0.5% prevalence rate.<h4>Objectives</h4>We aimed to determine the frequency of sensitizations to 30 EBS allergens and 10 locally added allergens. Additionally, we assessed the strength and evolution of reactions to all tested allergens and co-reactivity of additional allergens.<h4>Methods</h4>Patch testing with our baseline series of 40 allergens was done in 748 consecutive adults. Tests were applied to the upper back and removed by patients after 48 h. Readings were done on Day 3 (D3) and D6 or D7 (D6/7). Positive reactions fulfilled the criteria of at least one plus (+)Contact dermatitis439-446https://www.ebi.ac.uk/biostudies/studies/S-EPMC9796124biostudies-literaturePatch testing with the European baseline series and 10 added allergens: Single-centre study of 748 patients.PMC9796124Bizjak MErzen RAdamic KKosnik MDinevski DLalek NJost MKopac PBajrovic NZidarn MfalsePatch testing with the European baseline series and 10 added allergens: Single-centre study of 748 patients.<h4>Background</h4>The European baseline series (EBS) of contact allergens is subject to change. An allergen is considered for inclusion when routine patch testing of patients with suspected contact dermatitis results in ≥0.5% prevalence rate.<h4>Objectives</h4>We aimed to determine the frequency of sensitizations to 30 EBS allergens and 10 locally added allergens. Additionally, we assessed the strength and evolution of reactions to all tested allergens and co-reactivity of additional allergens.<h4>Methods</h4>Patch testing with our baseline series of 40 allergens was done in 748 consecutive adults. Tests were applied to the upper back and removed by patients after 48 h. Readings were done on Day 3 (D3) and D6 or D7 (D6/7). Positive reactions fulfilled the criteria of at least one plus (+)2022-01-01T00:00:00Z2022 Nov2026-05-10T04:50:18.367Z2025-04-21T15:16:12.855ZS-EPMC97961243573650310.1111/cod.14178