. Author manuscript; available in PMC: 2011 Apr 1.

Published in final edited form as: Int J Cardiol. 2008 Dec 11;140(1):55–59. doi: 10.1016/j.ijcard.2008.10.049

Table 3.

All-cause mortality in matched chronic heart failure patients, by median left ventricular ejection fraction (LVEF) of 35%

	Rate, per 10,000 person-years (Events/total follow up years)		Absolute rate difference^* (per 10,000 person-years)	Hazard ratio (95% confidence interval)	P value
	No coronary revascularization	Coronary revascularization	Absolute rate difference^* (per 10,000 person-years)	Hazard ratio (95% confidence interval)	P value
LVEF ≤35% (range, 10% to 35%)	201 (14/697)	241 (5/207)	+ 40	1.34 (0.48–3.71)	0.578
LVEF >35% (range, 36% to 74%)	119 (8/670)	81 (2/247)	− 38	0.61 (0.13–2.87)	0.532

Absolute differences in rates of events per 10,000 person-year of follow up were calculated by subtracting the event rates in the no coronary revascularization group from the event rates in the coronary revascularization group (before values were rounded)