Table 3

Arthritis scoring system for POLY JIA patients*

Score

Severity level

Arthritis


0

None

No joint involvement


1

Mild

1 to 10 active joints


2

Moderate

10 to 20 active joints


3

Severe

> 20 active joints


* Arthritis severity is scored differently for SJIA and POLY JIA patients, because the patterns of joint involvement differ between the two groups [33]. The arthritis scoring system is based on frequency analyses of numbers of active joints in early active SJIA [34] and in active POLY JIA [Sandborg C, not shown]. An active joint is defined as a joint with non-bony swelling, or limited range of motion with either tenderness or pain on motion.

Ling et al. BMC Medicine 2012 10:125   doi:10.1186/1741-7015-10-125

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