TMP-SMX prophylaxis cuts PJP risk by 69% (RR 0.31) & mortality by 59% (RR 0.41) in immunosuppressed rheum dz pts —but ADRs are 26x more common. NNT=323, NNH=5. Risk-adapted approach recommended. #EULAR2026 POS1190 https://t.co/4yjD9CmySM