Table 1.

Anti-dsDNA antibody and disease activity

Anti-dsDNAInactive DiseaseActive diseasep value
0 (n=141)1+ (n=230)
QUANTA FlashTiters (units)72 (30–134)170 (56–813)<0.001
Percent positive (>35 Units)72%86%<0.001
High AvidityTiters (units)36 (12–170)129 (47–775)<0.001
Percent positive (>30 Units)56%77%<0.001
QUANTA LiteTiters (units)343 (106–624)545 (293–879)<0.001
Percent positive (>301 Units)53%74%<0.001
CLIFTTiters (units)1:160 (1:80 – 1:320)1:320 (1:160–1:320)<0.001
Percent positive (>1:10)99%97%0.26
  • Titers are presented as median inter-quartile range.