> 50% of SLE pts showed activation of all 3 complement pathways. The most frequent patterns were normal CL, low AL, normal MBL; low CL & AL, normal MBL. Dz activity, not damage, assoc'd only w/low CL and AL, and normal MBL. Abs 0317 #ACR22 @RheumNow https://t.co/nXtuZCfKDI