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Ethnic differences in pediatric systemic lupus erythematosus
Journal of Rheumatology, 10/20/09

Hiraki LT et al. – Non-Caucasian ethnicity is associated with increased pSLE disease prevalence. Non-Caucasian pSLE patients were significantly younger and more likely to have nephritis. However, disease activity and damage were strongly associated with major organ disease independent of the patient’s ethnicity.

Methods

Ethnic demographic profiles of inception cohort of 265 patients with pSLE followed at Sick Kids Hospital in Toronto determined and compared to Metropolitan Toronto at-risk population
Patients categorized into ethnic subsets based on self-designated ethnic origins
Disease characteristics including major organ involvement, disease activity, and damage measures longitudinally determined and compared among ethnic groups

Results

Ethnicity data available on 259/265 pSLE patients (99.6%); the majority were non-Caucasian (60%) compared to Metropolitan Toronto at-risk population (40%)
Non-Caucasian patients younger at diagnosis than Caucasian patients, Black patients being youngest at diagnosis
Renal disease significantly more common in non-Caucasian than Caucasian pSLE patients
Trend toward increased prevalence of CNS disease in Black patients compared to Asian patients
No difference in gender ratio, SLE Disease Activity Index, or damage scores between ethnic groups

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