Table 4. Cox proportional hazards regression models for prediction of: A. All-cause death, B. Clinically driven target vessel revascularisation (CDTLR), C. Multivariable model for the prediction of bail-out stenting with femoropopliteal lesions.

Covariates	b	SE	Wald	p-values	Exp (b)	95% CI of exp (b)
A. Predictors of all-cause death by multivariable Cox proportional hazards regression analysis
Age	–0.027	0.025	1.13	0.28	0.97	0.92 to 1.02
Gender	0.35	0.55	0.42	0.52	1.43	0.48 to 4.21
hsTnT	0.023	0.0051	20.25	<0.0001	1.02	1.01 to 1.03
Lesion length (cm)	0.028	0.021	1.82	0.17	1.02	0.98 to 1.07
Claudication versus CLTI	1.45	0.60	5.74	0.02	4.26	1.30 to 13.99
PACSS score	0.49	0.36	1.80	0.17	1.64	0.79 to 3.38
B. Predictors of clinically driven TLR by multivariable Cox proportional hazards regression analysis
Age	–0.015	0.027	0.33	0.56	0.98	0.93 to 1.03
Gender	0.87	0.49	3.18	0.07	2.40	0.91 to 6.30
hsTnT	0.0046	0.014	0.10	0.74	1.00	0.97 to 1.03
Lesion length (cm)	0.045	0.019	5.55	0.01	1.04	1.00 to 1.08
Claudication versus CLTI	–0.19	0.52	0.14	0.70	0.81	0.29 to 2.29
PACSS score	0.45	0.31	2.11	0.14	1.57	0.85 to 2.89
C. Predictors of bail-out stenting by multivariable analysis with femoropopliteal lesions
Severe calcification by PACSS=4	–0.61	0.39	2.42	0.11	0.54	0.24 to 1.17
Presence of CTO	–1.25	0.64	3.86	0.049	0.28	0.08 to 0.99
Presence of TASC D lesion	1.14	0.42	7.25	0.007	3.13	1.36 to 7.21
Lesion length (cm)	0.054	0.015	12.11	0.0005	1.05	1.02 to 1.08
CLTI: critical limb-threatening ischaemia; CTO: chronic total occlusion; HsTnT: high-sensitive troponin T; PACSS: peripheral arterial calcium scoring system; TASC: Transatlantic Inter-Society Consensus; TLR: target lesion revascularisation