Ab0343. #ACR22 Severe non-adherence of HCQ associated with FLARES, DAMAGE and DEATH 7.3% had "severe non-adherence" by HCQ levels Hazard ratio of flare 3.3, damage 4.26, and death 5.4 Not surprising, but very useful for pt discussion Checking HCQ levels are helpful! @Rheumnow https://t.co/S7P9oTPRGJ