Table 3.

QRS-T angle measurements in implanted defibrillator recipients

		MRT	ART	TCRT
All patients (N = 137/468)	Event + (°)	95.2 ± 64.0	148.7 ± 30.6	135.8 ± 32.4
	Event − (°)	89.8 ± 62.9	138.7 ± 35.5	121.9 ± 41.5
	Comparison P	0.3	0.0006	0.003
	ROC AUC (%)	72.1 (55.7–86.3)	72.7 (60.5–83.2)	78.3 (63.4–89.6)
	Cox model P	0.7	0.6	0.04
Patients with QRS > 120  ms (N = 82/218)	Event + (°)	72.5 ± 66.9	153.1 ± 29.4	141.1 ± 29.4
	Event − (°)	55.8 ± 61.8	150.0 ± 28.0	128.1 ± 40.0
	Comparison P	0.04	0.4	0.007
	ROC AUC (%)	59.6 (49.4–69.5)	56.7 (46.8–66.8)	56.7 (47.3–66.0)
	Cox model P	0.07	0.6	0.02

The association of different measurements of QRS-T angle with follow-up all-cause mortality is shown. The top part shows the results of all patients of the population, the bottom part the results of sub-population of patients with QRS duration exceeding 120 ms. See the legend of Table2 for further explanations.

MRT, maximum R to T; ART, area R to T; TCRT, total cosine R to T.