Table 1

Sensitivity of commonly used laboratory tests for diagnosing chronic arthritis in children#

Test cited as reason for referral
Number Referred
JRA/JIA
Other

IgM-RF
16
3 (19%)*
13 (81%)

ANA
90
14 (16%)
76 (84%)

# – Summary of data from McGhee et al, ref. [5]

Jarvis Pediatric Rheumatology 2008 6:19   doi:10.1186/1546-0096-6-19