Table 3.

Multivariable Cox regression analyses.

Parameter	Endpoint death/HTx/AF			Endpoint death/HTx
	adjusted HRa	95% CI	p value	adjusted HRa	95% CI	p value
IAB vs. no IAB (n = 182)	1.88	1.22–2.89	0.004	2.05	1.23–3.41	0.006
pIAB vs. no IAB (n = 163)	1.86	1.16–2.97	0.010	1.88	1.08–3.27	0.026
aIAB vs. no IAB (n = 122)	2.39	1.16–4.92	0.018	2.44	1.08–5.52	0.032
aIAB vs. pIAB (n = 79)	0.91	0.43–1.94	0.804	1.07	0.45–2.52	0.878
Abnormal PTFV1 vs. normal PTFV1 (n = 182)	1.09	0.69–1.73	0.707	1.16	0.67–1.99	0.598

Time from CRT implantation. Follow-up is 5 years. Tde reference variables are no IAB and normal PTFV₁

^aAdjusted for age, NYHA Class, ischemic etiology of HF, LBBB, LVEF, CRT-P vs. CRT-D.