. 2020 Apr 27;10(12):5613–5622. doi: 10.7150/thno.45985

Table 3.

Performance for predicting severe-event-free survival with Cox proportional hazard models

	Day 0	P	Day 4	P	Changes from Day 0 to Day 4	P
APACHE-II	0.77(0.68~0.85)	0.768	0.76(0.64~0.87)	<0.001	0.80(0.70~0.90)	<0.001
NLR	0.75(0.66~0.84)	0.930	0.77(0.67~0.86)	<0.001	0.76(0.66~0.85)	<0.001
D-dimer	0.73(0.64~0.83)	0.422	0.76(0.66~0.86)	<0.001	0.76(0.66~0.86)	<0.001
PGV	0.74(0.64~0.83)	0.610	0.80(0.70~0.89)	<0.001	0.81(0.72~0.90)	<0.001
PSV	0.74(0.64~0.83)	0.870	0.84(0.74~0.94)	0.216	0.88(0.81~0.95)	0.022
PCV	0.75(0.66~0.84)	0.965	0.86(0.77~0.95)	0.477	0.88(0.80~0.95)	0.049
CT features	0.75(0.66~0.84)	Reference	0.85(0.76~0.95)	Reference	0.88(0.81~0.95)	Reference
NLR + CT features	0.75(0.66~0.84)	0.312	0.86(0.77~0.95)	0.543	0.88(0.81~0.95)	0.717

Note:

(a) Results are presented as concordance indices (95% CI).

(b) PGV=Percentage of GGO volume; PSV=Percentage of semi-consolidation volume; PCV=Percentage of consolidation volume.