Relationship between the ST-Segment Resolution and Microvascular Dysfunction in Patients Who Underwent Primary Percutaneous Coronary Intervention

Table 3

Univariate and multivariate regression analyses for predicting high IMR (IMR ≥27.3).

	Univariate analysis		Multivariate analysis
	HR (95% CI)	value	HR (95% CI)	value
Age, per year	1.01 (0.97–1.06)	0.545
Male	0.76 (0.16–3.59)	0.727
Hypertension	1.53 (0.50–4.75)	0.458
Diabetes mellitus	1.25 (0.33–4.70)	0.741
Dyslipidemia	1.70 (0.34–8.55)	0.520
Current smoking	2.06 (0.65–6.51)	0.217
Incomplete STR	4.03 (1.22–13.28)	0.022	4.80 (1.06–21.69)	0.042
Peak CK-MB	1.01 (1.00–1.01)	0.060	1.00 (1.00–1.01)	0.265
Peak troponin-I	1.02 (1.00–1.04)	0.070	1.01 (0.98–1.05)	0.534
hsCRP	1.05 (0.85–1.30)	0.659
Ejection fraction	0.94 (0.87–1.01)	0.091	1.00 (0.91–1.11)	0.878
Aspiration thrombectomy	0.48 (0.07–3.44)	0.500
Stent length	1.05 (0.96–1.15)	0.255

CI: confidence interval; CK-MB: creatine kinase-MB; HR: hazard ratio; IMR: index of microvascular resistance; STR: ST-segment elevation resolution.