Table 4.

Results of the Path Model Based on Structural Equation Modeling

Clinical factor	Estimate	SE	Test statistic	P value	Standard regression coefficient
					Direct effect	Indirect effect	Total effect
Pre-total QCA area
→ Post-total QCA area	1.019	0.079	12.894	<0.001	0.873	0	0.873
→ Change from pre- to post-LVEF	−0.032	0.009	−3.519	<0.001	−0.893	0.774	−0.120
Post-total QCA area
→ Change from pre- to post-LVEF	0.027	0.008	3.493	<0.001	0.887	0	0.887

Total quantitative coronary angiography (QCA) area was defined as the area of the left anterior descending plus left circumflex plus right coronary arteries. LVEF, left ventricular ejection fraction.