Table 6.
Results of univariable and multiple linear regression analysis for therapeutic strategies correlated with IMR value.
| Parameter | Univariable analysis | Multiple analysis | Multiple analysis∗ | ||||||
|---|---|---|---|---|---|---|---|---|---|
| β | SE | P value | β | SE | P value | β | SE | P value | |
| Mechanical strategies | |||||||||
| Stent diameter | −8.00 | 4.18 | 0.057 | −9.39 | 3.94 | 0.018 | −5.36 | 3.45 | 0.123 |
| Stent length | 0.31 | 0.15 | 0.046 | 0.23 | 0.14 | 0.118 | −0.03 | 0.13 | 0.807 |
| Pre-balloon dilatation | −3.64 | 3.24 | 0.264 | ||||||
| Post-balloon dilatation | 10.44 | 4.25 | 0.015 | 11.40 | 4.22 | 0.008 | 8.30 | 3.53 | 0.020 |
| Direct stenting | 3.64 | 3.24 | 0.264 | ||||||
| Thrombectomy | 2.60 | 2.87 | 0.366 | ||||||
|
| |||||||||
| Pharmacological strategies | |||||||||
| Third-generation P2Y12 inhibitors | −7.24 | 2.99 | 0.017 | −10.69 | 2.91 | <0.001 | −10.28 | 2.56 | <0.001 |
| Morphine | −4.08 | 2.92 | 0.164 | ||||||
| GP IIb/IIIa inhibitor | 8.49 | 3.48 | 0.016 | 8.51 | 3.38 | 0.013 | −0.98 | 3.50 | 0.756 |
β, unstandardized coefficients; GP, glycoprotein; SE, standard error. ∗Multiple regression analysis adjusted for age, sex, Killip class, symptom onset to hospital time, peak troponin-I level, multivessel disease, final thrombolysis in myocardial infarction myocardial perfusion grade, and presence of distal embolization.