Table 4. C-statistics for prediction of poor outcome and in-hospital mortality.

Poor outcome (mRS > 2)a			Deathb
Characteristics	C-statistics (95% CI)	Pc	Characteristics	C-statistics (95% CI)	Pc
NIHSS score (admission) ≥ 12	0.691 (0.657–0.725)		NIHSS score (admission) ≥ 12	0.790 (0.707-0.872)
Includes age ≥ 76 years	0.748 (0.717–0.780)	<0.001	Includes troponin I > 0.01ug/L	0.860 (0.799–0.921)	0.001
Further includes deterioration	0.778 (0.748–0.808)	<0.001	Further includes deterioration	0.912 (0.859–0.965)	0.018
Further includes troponin I > 0.01 ug/L	0.787 (0.758–0.817)	0.006	Further includes male gender	0.926 (0.884–0.969)	0.134
Further includes heart rate ≥ 82 bpm	0.796 (0.767–0.825)	0.057
Model 1	0.790 (0.761–0.819)	Pd	Model 2	0.887 (0.829–0.946)	Pd
+Troponin I > 0.01ug/L	0.796 (0.767–0.825)	0.155	+Troponin I > 0.01ug/L	0.926 (0.884–0.969)	0.019
+Troponin I > 0.1ug/L	0.798 (0.769–0.826)	0.106	+Troponin I > 0.1ug/L	0.927 (0.886–0.968)	0.028

Notes.

mRS

modified Rankin Scale

NIHSS

National Institute of Health Stroke Scale

CI

confidence interval

^aMultiple logistic regression.

^bStepwise backward regression.

^cCompared with previous one.

^dCompared with Model 1 or 2.

Model 1 includes NIHSS score (admission) ≥ 12, age ≥ 76 years, deterioration, heart rate ≥82 bpm Model 2 includes NIHSS score (admission) ≥12, deterioration, male gender.