. Author manuscript; available in PMC: 2016 Aug 4.

Published in final edited form as: J Am Coll Cardiol. 2015 Aug 4;66(5):524–531. doi: 10.1016/j.jacc.2015.05.057

TABLE 1.

Changes in LVEF During Follow-up

	Overall (N = 538)	ICD Patients (n = 353)	CRT-D Patients (n = 185)

Changes in LVEF^*
Worsened	70 (13.0)	51 (14.5)	19 (10.3)
Unchanged	253 (47.0)	180 (51.0)	73 (39.5)
Improved	215 (40.0)	122 (34.6)	93 (50.3)
Absolute LVEF (%)
Baseline LVEF	21.8 ± 7.2	22.4 ± 6.9	20.6 ± 7.5
Last LVEF	28.6 ± 13.7	27.3 ± 12.5	30.9 ± 15.6
Average difference	6.7	4.9	10.2

Values are n (%) or means ± SD.

Changes in LVEF were categorized as follow: worsened = absolute decrease in LVEF >5%; unchanged = absolute change in LVEF −5 to 5%; and improved = absolute increase in LVEF >5%.

CRT-D = cardiac resynchronization therapy device with of defibrillator capacity; ICD = implantable cardioverter-defibrillator; LVEF = left ventricular ejection fraction.