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