The prognostic value of dynamic changes in SII for the patients with STEMI undergoing PPCI

Table 8 Receiver-operating characteristic (ROC) curve analyses of six groups of SII, hs-CRP_max, cTnI_max, CK-MB_max for predicting out-of hospital outcomes in STEMI patients

	Cut-off	Sensitivity	Specificity	AUC	95%CI	P value
SII before(T0)	1278.35	0.534	0.681	0.630	0.558–0.702	0.001^*
SII12h after(T1)	1361.13	0.671	0.602	0.655	0.587–0.723	<0.001^*
SII24h after	918.45	0.781	0.566	0.678	0.612–0.745	<0.001^*
SII48h after	1055.28	0.534	0.821	0.726	0.664–0.787	<0.001^*
T2	735.32	0.753	0.645	0.742	0.679–0.804	<0.001^*
SII1month(T1M)	696.43	0.767	0.880	0.892	0.846–0.937	<0.001^*
hs-CRP_max	16.45	0.644	0.562	0.584	0.512–0.657	0.029^*
cTnI_max	5.668	0.438	0.681	0.542	0.465–0.619	0.272
CK-MB_max	252.70	0.397	0.721	0.539	0.460–0.617	0.316

^*is significant. (AUC, area under the curve; ROC, receiver operating characteristic; SII, systemic immune-inflammation)

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