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Background: There are few population‐based studies assessing the prevalence of skin diseases. Objectives: To estimate the prevalence of five chronic skin inflammatory diseases, i.e. atopic dermatitis (AD), psoriasis, alopecia areata (AA), vitiligo and hidradenitis suppurativa (HS) in France, using validated self‐diagnostic questionnaires. Methods: Population‐based study using a representative sample of the French general population aged more than 15 years and sampling with replacement design. All participants were asked (ii) to fill in a specific questionnaire including socio‐demographic characteristics, (ii) to declare if they have been diagnosed with one or more skin problem or skin diseases during their life, and (iii) to fill in five validated self‐reported questionnaires for AD, psoriasis, AA, vitiligo and HS. Results: A total of 20.012 adult participants responded to the questionnaire of whom 9760 were men (48.8%) and 10.252 (51.2%) were women. We identified a prevalence of 4.65% for AD (931 individuals), 4.42% for psoriasis (885 individuals), 1.04% for AA (210 individuals), 0.46% for vitiligo (93 individuals) and 0.15% for HS (29 individuals), respectively. Limitations: Questionnaire‐based study and possible disease misclassifications. Conclusion: This is the largest population‐based study aiming to estimate the prevalence of five chronic skin inflammatory diseases. [ABSTRACT FROM AUTHOR]

Background It is well known that patients with chronic wounds frequently acquire clinically relevant contact sensitizations to skin care products. Objectives The aim of our study was to find out the actual frequency of contact sensitivities in patients with chronic wounds in Germany with particular attention to components of products used in modern wound therapy. Methods We examined the results of a prospective clinical investigation on skin patch tests of patients with chronic wounds. Results Altogether, 45 patients with chronic wounds were tested. In 25 (55.5%) of the examined patients, contact sensitization to at least one substance was detected. The most frequent contact sensitizations were to PVP-iodine (20%), balsam of Peru (15.6%) patients, fragrance mix (11.1%), colophony (8.8%) and potassium dichromate (6.7%). We also found sensitization to the wound dressings Varihesive™ (11.1%), Iruxol™ N (6.7%) and Comfeel™ (2.2%). Conclusions We would like to propagate that therapists who are involved in wound treatment should also pay attention on the ingredients of applied modern wound dressings. [ABSTRACT FROM AUTHOR]