HOXD13 and Sepsis: In terms of predictive ability to diagnose sepsis in the ICU-treated cohort (sepsis + ICU controls), AUC for sBTLA and sPD-1 were 0.626 (95% CI 0.492–0.76, p = 0.048) and 0.603 (95% 0.477–0.730, n.