Table 3. C-statistics of the risk scores at different time points in patients with STEMI (n = 404).

Events	TIMI (95% CI)	GRACE (95% CI)	Δ (95% CI)
Death
In-hospital	0.738 (0.690 to 0.782)	0.766 (0.720 to 0.808)	0.028 (-0.050 to 0.106)
6-month	0.713 (0.662 to 0.760)	0.778 (0.731 to 0.821)	0.065 (-0.003 to 0.133)
1-year	0.711 (0.660 to 0.758)	0.789 (0.742 to 0.831)	0.079 (0.009 to 0.149)
3-year	0.684 (0.631 to 0.734)	0.767 (0.718 to 0.812)	0.083 (0.021 to 0.146)
Death/MI/stroke
In-hospital	0.748 (0.701 to 0.792)	0.764 (0.717 to 0.806)	0.016 (-0.063 to 0.095)
6-month	0.721 (0.671 to 0.768)	0.736 (0.686 to 0.782)	0.015 (-0.051 to 0.081)
1-year	0.701 (0.650 to 0.749)	0.745 (0.696 to 0.791)	0.044 (-0.017 to 0.106)
3-year	0.695 (0.643 to 0.744)	0.720 (0.668 to 0.767)	0.025 (-0.027 to 0.076)

Δ, difference between the two C-statistics. CI, confidence interval; GRACE, Global Registry of Acute Coronary Events; MI, myocardial infarction; TIMI, thrombolysis in myocardial infarction.