Table 1.

Baseline characteristics, stratified by programming at implant

	Nominal (n=1559)	AV adjusted (n=2294)	p value (vs. nominal)	VV adjusted (n=604)	p value (vs. nominal)	AV and VV adjusted (n=852)	p value (vs. nominal)
Age	69.8 (11.3)	68.8 (11.1)	0.007	69.8 (11.8)	0.997	68.8 (11.5)	0.030
Male	73.7 %	69.9 %	0.006	73.8 %	0.964	71.0 %	0.133
DFT at implant	77.6 %	83.8 %	<0.0001	80.3 %	0.166	81.9 %	0.011
Last shock energy (J)	19.97 (6.31)	19.43 (6.35)	0.011	19.97 (5.98)	0.956	19.45 (5.55)	0.069
Bradycardia programming
DDD	52.5 %	59.8 %	<0.0001	48.2 %	0.065	59.0 %	0.001
DDDR	47.5 %	40.2 %	<0.0001	51.8 %	0.065	41.0 %	0.001
LRL	61.5 (7.3)	59.9 (7.5)	<0.0001	60.2 (9.4)	0.000	58.7 (8.9)	<0.0001
Tachyarrhythmia programming
1 therapy zone	16.5 %	15.9 %	0.580	8.9 %	<0.0001	11.4 %	0.0004
2 therapy zones	69.7 %	71.2 %	0.269	75.3 %	0.007	75.7 %	0.001
3 therapy zones	13.8 %	12.9 %	0.377	15.7 %	0.232	12.9 %	0.534
VT detection rate	175 (15)	176 (14)	0.224	176 (14)	0.564	175 (14)	0.290
VF detection rate	207 (16)	207 (16)	0.379	209 (15)	0.009	207 (16)	0.736
ATP therapy “on” in VT zone/s	94.3 %	95.2 %	0.227	95.9 %	0.134	96.1 %	0.051

Numbers are % or mean (standard deviation)

AV atrioventricular timing, VV ventricular-to-ventricular timing, DFT defibrillation threshold testing, LRL lower rate limit