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Table 2 Table 2

From: Auto-antibody testing for children on biologic therapies for rheumatological conditions: results of audit

Antibody No of children with positive results / No children with antibodies checked [%] No of positive antibodies / No antibodies checked [%] Comments
ANA 80 / 111 [72%] 431 / 540 [79%] 36 children [32%] ANA always +ve; 44 children ANA sometimes +ve but not always.
Anti ENA 4 / 109 [<4%] 18 / 501 [<4%] Always non-specific. Negative on subsequent testing.
Anti dsDNA 1/ 111 [<1%] 2 / 510 [<1%] Negative on subsequent testing.
ANCA 14 / 41 [34%] 25 / 66 [38%] Always non-specific (non PR3 / MPO).
Anticardiolipin 6 / 98 [6%] 8 / 894 [<1%] Negative on subsequent testing.