Table 2.

T-cell–activation parameters distinguishing patients with HLH and sepsis

Activation markerSensitivitySpecificityPPVNPVLR
CD8+ CD38+ >22% 0.93 (0.81-0.97) 0.89 (0.68-98.1) 0.95 (0.84-0.99) 0.85 (0.64-0.95) 8.8 
CD8+ HLA-DR+ >27% 0.86 (0.66-0.95) 0.88 (0.56-0.99) 0.95 (0.76-1.0) 0.72 (0.43-0.90) 7.7 
CD8+CD38+HLA-DR+>7% 1.0 (0.85-1) 0.89 (0.56-0.99) 0.96 (0.79-1) 1 (0.67-1) 9 
CD4+ CD38+ >17.4% 0.63 (0.42-0.80) 0.66 (0.35-0.88) 0.82 (0.59-0.94) 0.43 (0.21-0.67) 1.9 
CD4+ HLA-DR+ >2% 0.95 (0.76-1.0) 0.88 (0.56-0.99) 0.95 (0.76-1) 0.89 (0.56-0.99) 8.5 
CD4+ CD38+ HLA-DR+ >1.2% 0.85 (0.64-0.95) 0.89 (0.56-0.99) 0.94 (0.74-0.99) 0.73 (0.43-0.90) 7.6 
Activation markerSensitivitySpecificityPPVNPVLR
CD8+ CD38+ >22% 0.93 (0.81-0.97) 0.89 (0.68-98.1) 0.95 (0.84-0.99) 0.85 (0.64-0.95) 8.8 
CD8+ HLA-DR+ >27% 0.86 (0.66-0.95) 0.88 (0.56-0.99) 0.95 (0.76-1.0) 0.72 (0.43-0.90) 7.7 
CD8+CD38+HLA-DR+>7% 1.0 (0.85-1) 0.89 (0.56-0.99) 0.96 (0.79-1) 1 (0.67-1) 9 
CD4+ CD38+ >17.4% 0.63 (0.42-0.80) 0.66 (0.35-0.88) 0.82 (0.59-0.94) 0.43 (0.21-0.67) 1.9 
CD4+ HLA-DR+ >2% 0.95 (0.76-1.0) 0.88 (0.56-0.99) 0.95 (0.76-1) 0.89 (0.56-0.99) 8.5 
CD4+ CD38+ HLA-DR+ >1.2% 0.85 (0.64-0.95) 0.89 (0.56-0.99) 0.94 (0.74-0.99) 0.73 (0.43-0.90) 7.6 

Bold represents the parameter with the highest LR.