Serious infx (SIE) is prevalent in SLE given RTX. TOtal of 174 SLE pts on RTX -- SIE rate was high at 51/100 PYs (Pneumonia 30/100 PYs; PJP in 6.1/100 PYs).12 deaths. SIE risk factors were CKD (HR 2.9), Pred ≥15 /day (HR 3.5). HCQ decreased SIE (HR 0.35) https://t.co/8GcSQx8nxh https://t.co/oZvMgTxKVI