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A follow-up study of juvenile rheumatoid arthritis into adulthood.

AIM OF THE STUDY
To study the clinical profile of various subtypes of juvenile rheumatoid arthritis (JRA) in adulthood and analyse the outcome of the disease in terms of functional status, educational achievement, growth abnormalities, radiological progression and activity of the disease.


METHODS
From a group of 150 JRA cases, 26 adult patients were included in the study. All of them were under follow up since the onset of disease in childhood. Clinical data at the onset were obtained from old medical documents. Detailed clinical and laboratory assessment of all cases were done.


RESULTS
There were 10 oligoarticular, 13 polyarticular and three systemic onset cases. Mean age of onset of disease was 11.7 +/- 3.39 years (range 2-15). Mean duration of follow up was 11.4 +/- 4.46 years range (6-22). Twenty-one patients had active disease. Ninety percent of oligoarthritis group were in class 1 status whereas none of the systemic onset JRA cases were in class I. Micrognathia, short stiff neck and short stature were noticed among polyarticular and systemic onset JRA. Seventy percent of oligoarthritis group developed inflammatory low back ache. Bony ankylosis of tarsal and carpal bones were seen in eight cases.


CONCLUSION
In our study there is a male predominance in JRA. Pauciarticular (oligoarthritis) JRA occurring in older boys had the best functional outcome. Growth abnormalities and radiological changes were more common in polyarticular and systemic onset JRA.