Table 5.

Cox Proportional Hazard Models Clinical and Procedural Predictors of Target Vessel Failure and MACE at 1-year.

Predictors of Target Vessel Failure*	Univariate			Multivariable
	HR	95% CI	P Value	HR	95% CI	P value
Subintimal Tracking	2.74	1.00–7.54	0.04	1.51	0.38–6.00	0.55
Japanese CTO Score‡	1.75	1.20 −2.56	0.004	1.40	0.74–2.62	0.30
History of Coronary Artery Bypass Grafting	1.51	0.63–3.66	0.85	0.75	0.20–2.77	0.66
History of Percutaneous Coronary Intervention	2.51	0.74–8.56	0.14	4.87	0.81–29.21	0.08
Retrograde approach	2.38	0.99–5.7	0.053	1.55	0.39–6.1	0.53
IVUS Vascular injury	3.83	0.88–16.50	0.07	2.50	0.25–24.86	0.43
Minimal Stent Area	0.87	0.63–1.19	0.37	0.98	0.68–1.41	0.92
Angiographic and IVUS predictors of MACE*	HR	95% CI	P Value	HR	95% CI	Adjusted P value
Subintimal Tracking	2.24	0.93–5.41	0.06	1.83	0.52–6.46	0.34
Japanese CTO Score‡	1.60	1.13–2.26	0.008	1.37	0.80–2.36	0.25
History of Coronary Artery Bypass Grafting	1.60	0.70–3.50	0.27	0.83	0.26–2.62	0.74
History of Percutaneous Coronary Intervention	1.69	0.63–4.51	0.30	2.14	0.57–8.04	0.26
Retrograde approach	2.04	0.91–4.55	0.08	1.30	0.38–4.27	0.78
IVUS Vascular injury	2.14	0.73–6.27	0.16	1.02	0.22–4.76	0.97
Minimal Stent Area	0.99	0.76–1.28	0.01	1.12	0.84–1.49	0.46

^*Multivariable Models also adjusted for Age, Gender, DM, and Ejection Fraction

^†Log rank test used

^‡treated as an ordinal variable

Abbreviations: CTO – chronic total occlusion, IVUS – intravascular ultrasound.