Table 2

Univariate mortality analyses

		95% CI of HR
Mode of death	HR	Low	High	p Value
All cause	0.981	0.974	0.988	<0.001
Progressive heart failure	0.981	0.969	0.993	0.002
Sudden	0.972	0.954	0.990	0.003
Non-cardiovascular	0.981	0.97	0.993	0.001

HRs associated with a 1 bpm increase in AHRR
AHRR, ambulatory heart rate range.