Funding sources None.
Juvenile psoriasis in European and Asian children: similarities and differences
Article first published online: 21 MAR 2011
© 2011 The Authors. BJD © 2011 British Association of Dermatologists
British Journal of Dermatology
Volume 164, Issue 5, pages 1101–1103, May 2011
How to Cite
Chiam, L.Y.T., de Jager, M.E.A., Giam, Y.C., de Jong, E.M.G.J., van de Kerkhof, P.C.M. and Seyger, M.M.B. (2011), Juvenile psoriasis in European and Asian children: similarities and differences. British Journal of Dermatology, 164: 1101–1103. doi: 10.1111/j.1365-2133.2010.10196.x
Conflicts of interest None declared.
- Issue published online: 26 APR 2011
- Article first published online: 21 MAR 2011
- Accepted manuscript online: 27 DEC 2010 02:24AM EST
- Accepted for publication 11 December 2010
Summary Background The first manifestations of psoriasis begin in childhood in more than one-third of patients. However, epidemiological data of juvenile psoriasis are lacking.
Objectives To compare Dutch (NL group) and Singaporean (SG group) children with psoriasis with the aim of studying the characteristics of juvenile psoriasis and to highlight similarities and differences between these different ethnic groups.
Methods Data were collected from 207 patients younger than 18 years diagnosed with psoriasis from Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands and the National Skin Centre, Singapore.
Results A striking difference in familial distribution was found, with more Dutch children having an affected family member (73·3% vs. 13·6%). Presence of itch and triggering factors were more common among Dutch children (80% vs. 14·2% and 33·3% vs. 7·4%, respectively). However, both groups shared similar triggering factors like stress and infections. Other similarities included mean age at presentation (NL group 11·3 years; SG group 14·1 years) and gender ratio (NL group, M/F 1 : 1·1; SG group, M/F 1 : 1·4). Plaque psoriasis was the most common type in both cohorts while guttate and pustular psoriasis were rare. In both groups, the head, followed by the limbs, was the most common site involved. Similar proportions of children in both countries had nail involvement and psoriatic arthritis was rare.
Conclusions The disparity in familial distribution may point to genetic differences between the two groups. Further studies to evaluate this difference in familial distribution may contribute to the understanding of the pathogenesis of psoriasis.