RT Journal Article
SR Electronic
T1 The influence of heredity for psoriasis on the ILAR classification of juvenile idiopathic arthritis.
JF The Journal of Rheumatology
JO J Rheumatol
FD The Journal of Rheumatology
SP 2454
OP 2458
VO 29
IS 11
A1 Lillemor Berntson
A1 Anders Fasth
A1 Boel Andersson-Gäre
A1 Troels Herlin
A1 Jon Kristinsson
A1 Pekka Lahdenne
A1 Gudmund Marhaug
A1 Susan Nielsen
A1 Pirkko Pelkonen
A1 Marite Rygg
YR 2002
UL http://www.jrheum.org/content/29/11/2454.abstract
AB OBJECTIVE: To evaluate how heredity for psoriasis influences classification according to the International League of Associations for Rheumatology (ILAR). Heredity for psoriasis is currently both an exclusion and an inclusion criterion for different types of childhood arthritis according to ILAR classification criteria. METHODS: Twenty physicians in 5 Nordic countries prospectively collected data from the incident cases in their catchment areas over an 18 month period beginning July 1, 1997. Clinical and serological data from the first year of disease were collected. RESULTS: Of the 321 patients included who could be classified according to ILAR criteria for childhood arthritis, 50 (15.6%) patients were excluded from 55 classification events and fulfilled criteria for "other arthritis 1" i.e., did not fulfill criteria for any of the other classification categories, primarily because of heredity for psoriasis. If psoriasis in second degree relatives was disregarded as an exclusion criterion, only 8.7% of the patients remained in the "other arthritis 1" subgroup. For 20.6% of the whole group, heredity for psoriasis in a first or second degree relative (or both) and its distribution among arthritis subgroups did not differ except for juvenile psoriatic arthritis. CONCLUSION: We suggest that second degree heredity for psoriasis be withdrawn as an exclusion criterion from the ILAR criteria.