HCQ prolongs SLE survival. Case–control study 6241 incident SLE pts compared 290 SLE dead to 502 alive controls. HCQ reduced all-cause mortality by 50% (aOR 0.50; .30–0.82) but HCQ stoppers had incr mortality (aOR 2.47) - sick stopper effect? https://t.co/JIeTJaDVPk