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Figure 4 Clinical, procedural, and angiographic predictors of side-branch (SB) occlusion (top) and of SB flow deterioration (bottom). Crude (unadjusted) relative risks (RR) and confidence intervals (CI) are displayed in a logarithmic scale. Adj RR = adjusted relative risks; Ad Hoc = procedures performed during the diagnostic coronary angiogram; Ostial-D = ostial disease in the SB; R Length = restenosis length (studied per 1 mm of increment); B/A Ratio = balloon/artery ratio using quantitative angiography (>1.13, upper tertile); Device = use of any device different from balloon angioplasty; angle = adverse takeoff angulation of the SB; MLD = minimal lumen diameter of the parent vessel after intervention (per 1 mm of increment); ST1 = during initial stenting.
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