Table 6.

Comparison of PCT, IL-6, and CRP sensitivity and specificity in different groups

Group	Time	PCT		IL-6		CPR
		Sensitivity	Specificity	Sensitivity	Specificity	Sensitivity	Specificity
ARDS	7 d	0.88*	0.6	0.64*	0.56	0.45	0.16
	14 d	0.73*	0.62	0.60*	0.44	0.35	0.24
	21 d	0.80*	0.68	0.56*	0.48	0.32	0.18
	28 d	0.79*	0.59	0.60*	0.46	0.31	0.26
ARD+MODS	7 d	0.99*,#	0.60	0.60*	0.50	0.34	0.20
	14 d	0.95*,#	0.58	0.58*	0.54	0.42	0.34
	21 d	0.88*,#	0.50	0.56*	0.58	0.38	0.28
	28 d	0.89*,#	0.60	0.62*	0.46	0.36	0.16
Control	7 d	0.70	0.57	0.36	0.46	0.30	0.26
	14 d	0.76	0.50	0.36	0.44	0.31	0.34
	21 d	0.68	0.42	0.30	0.48	0.30	0.28
	28 d	0.66	0.49	0.32	0.45	0.35	0.25

Compared with the control group during the same period:

^* P<0.05;

compared with the ARDS group during the same period:

^# P<0.05.