The value of shock index in prediction of cardiogenic shock developed during primary percutaneous coronary intervention

Table 2 Univariate regression analysis for the risk factors

Variables	OR	SE	P value	95% CI
Age	1.00	0.01	0.57	[0.99 1.03]
Female sex	1.14	0.34	0.65	[0.64 2.04]
Pre-Procedural SBP	0.94	0.01	< 0.01	[0.92 0.96]
Pre-Procedural HR	1.05	0.01	< 0.01	[1.03 1.06]
Total ischemic duration (per 1 h change)	1.01	0.01	0.51	[0.98 1.02]
Killips classification
Killips = 2 vs =1	2.45	0.67	0.001	[1.43 4.19]
Killips = 3 vs =1	6.20	3.44	0.001	[2.09 18.4]
Multiple vessel disease	1.44	0.39	0.18	[0.85 2.43]
Extensive anterior MI	0.89	0.26	0.69	[0.50 1.58]
Prior MI	0.96	0.73	0.95	[0.22 4.25]
Prior hypertension	0.61	0.15	0.05	[0.37 1.00]
Prior diabetes	0.72	0.22	0.28	[0.40 1.30]
Prior stroke	1.64	0.53	0.13	[0.87 3.10]
Prior dyslipidemia	1.06	0.45	0.89	[0.46 2.44]
Smoking	0.96	0.24	0.88	[0.59 1.58]
Serum creatinine	1.00	0.01	0.58	[0.99 1.01]

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