Association between Variation of Troponin and Prognosis of Acute Myocardial Infarction before and after Primary Percutaneous Coronary Intervention

Table 5

Results of the univariate and multivariable Cox proportional hazards model applied to assess correlates of 2-year MACE.

Baseline parameters	Univariate Cox regression		Multivariate Cox regression
	HR (95% CI)	value	HR (95% CI)	value
△cTnI	1.013 (1.004–1.022)	0.005	1.018 (1.001–1.035)	0.042
Q1△cTnI	Ref	Ref	Ref	Ref
Q2△cTnI	3.399 (1.357–8.514)	0.009	4.080 (1.342–12.403)	0.013
Q3△cTnI	2.637 (0.971–7.162)	0.057	2.561 (0.744–8.819)	0.136
Q4△cTnI	3.583 (1.317–9.752)	0.012	1.566 (0.290–8.444)	0.602
BMI	0.951 (0.876–1.033)	0.234	0.945 (0.863–1.035)	0.223
Anterior wall myocardial infarction	1.255 (0.709–2.224)	0.436	1.315 (0.681–2.540)	0.414
Uric acid	0.984 (0.974–0.994)	0.002	0.987 (0.977–0.998)	0.018
Number of stents	0.776 (0.477–1.261)	0.306	1.152 (0.697–1.905)	0.581
No-reflow phenomenon	1.014 (0.139–7.387)	0.989	1.463 (0.190–11.259)	0.715
Target lesion types
A	Ref	Ref	Ref	Ref
B1	0.272 (0.091–0.813)	0.020	—	0.908
B2	0.103 (0.031–0.340)	<0.001	—	0.917
C	0.162 (0.067–0.393)	<0.001	—	0.915
Organ thrombosis	1.011(0.622–1.643)	0.965	0.998 (0.481–2.075)	0.988
Completed occlusion	0.990 (0.524–1.872)	0.977	0.864 (0.411–1.820)	0.701
Target lesion involving branches	0.930 (0.481–1.797)	0.829	0.943 (0.456–1.952)	0.875

MACE, major adverse cardiovascular events; HR, hazard ratio; cTnI, cardiac troponin I; PPCI, primary percutaneous coronary intervention; BMI, body mass index.