Table 3

Quantitative coronary angiography at baseline and at 8-month angiographic follow-up in a subgroup of patients randomised to simple versus complex coronary bifurcation stenting

Segment	Proximal main vessel			Distal main vessel			Side branch
Segment	Simple n=153	Complex n=154	P value	Simple n=153	Complex n=154	P value	Simple n=153	Complex n=154	P value
In-stent minimal luminal diameter, mm
Pre-PCI	1.29±0.55	1.41±0.60	0.96	1.43±0.55	1.43±0.58	0.51	1.43±0.69	1.21±0.46	0.0008
Post-PCI	3.05±1.46	2.84±1.48	0.11	2.45±0.42	2.51±0.41	0.89	1.59±0.65	2.10±0.37	<0.001
Follow-up	2.76±0.54	2.65±0.56	0.06	2.48±0.49	2.42±0.53	0.30	1.77±0.70	2.07±0.51	<0.001
Reference diameter, mm
Baseline	3.13±0.47	3.20±0.57	0.86	2.57±0.46	2.61±0.54	0.74	2.33±0.49	2.40±0.49	0.59
In-stent diameter stenosis, %
Pre-PCI	59±16	57±17	0.17	40±20	43±22	0.25	43±18	49±17	0.99
Post-PCI	11±9	8±7	0.005	11±9	11±9	0.49	36±19	17±11	<0.001
Follow-up	12±11	10±8	0.01	12±10	15±12	0.97	32±20	21±17	<0.001
In-stent late lumen loss, mm
	0.27±1.48	0.08±1.52	0.14	−0.10±0.45	−0.03±0.47	0.89	−0.20±0.66	0.03±0.52	0.99
In-segment binary restenosis, n (%)
Follow-up	2 (1.3)	1 (0.7)	0.56	2 (1.3)	2 (1.3)	0.99	31 (20.3)	8 (5.2)	<0.001

Binary restenosis: ≥50% diameter stenosis at 8-month follow-up.
Fisher’s exact test, χ² test or independent samples t-test were used.
*In-stent segments included the stented areas of the main vessel and or the first 5 mm of the side branch.