Table 3.

Agreement of results obtained with different procalcitonin immunoassays compared to BRAHMS PCT Kryptor at three diagnostic thresholds.

Procalcitonin cut-off (ng/mL)	Liaison	Vidas	Cobas E601	Advia Centaur	Diazyme (Architect)	Diazyme (Advia 2400)	Diazyme (Cobas C501)	Diazyme (AU5800)
0.5	97% (κ, 0.93) AUC, 0.96	97% (κ, 0.93) AUC, 0.98	98% (κ, 0.95) AUC, 0.99	95% (κ, 0.89) AUC, 0.95	84% (κ, 0.66) AUC, 0.86	86% (κ, 0.70) AUC, 0.89	86% (κ, 0.65) AUC; 0.81	83% (κ, 0.60) AUC, 0.80
2.0	96% (κ, 0.92) AUC, 0.96	94% (κ, 0.88) AUC, 0.95	97% (κ, 0.94) AUC, 0.97	96% (κ, 0.92) AUC, 0.96	90% (κ, 0.80) AUC, 0.89	91% (κ, 0.82) AUC, 0.91	92% (κ, 0.84) AUC, 0.92	91% (κ, 0.82) AUC, 0.90
10.0	98% (κ, 0.94) AUC, 0.97	98% (κ, 0.94) AUC, 0.99	98% (κ, 0.94) AUC, 0.97	98% (κ, 0.94) AUC, 0.96	98% (κ, 0.94) AUC, 0.96	98% (κ, 0.94) AUC, 0.96	98% (κ, 0.94) AUC, 0.95	98% (κ, 0.94) AUC, 0.98

AUC, area under the curve.