. 2012 Nov 22;18(2):130–139. doi: 10.1111/anec.12005

Table 1.

General Characteristics in the Three Study Groups, Patients with Chronic Heart Failure (CHF) Who Died of Sudden Cardiac Death (SCD) during Follow‐Up, and Survivors Who Had a Left Ventricular Ejection Fraction (LVEF) ≤35% or >35%

	SCD Group	LVEF ≤ 35%	LVEF > 35%	P‐Values
	N = 12	Group N = 41	Group N = 31
Variables	Subjects	Subjects	Subjects	[ANOVA]
Age (years)	67 ± 11	62 ± 12	59 ± 10	NS
M/F	10/2	36/5	29/3	NS
BMI (kg/m²)	25 ± 5	27 ± 4	27 ± 4	NS
HR (beats/min)	72 ± 11	68 ± 9	64 ± 10	NS
SBP (mm Hg)	122 ± 27	114 ± 21	118 ± 22	NS
DBP (mm Hg)	65 ± 14	61 ± 14	64 ± 11	NS
QT_{end Bazett} (ms)	401 ± 75^c	390 ± 44	371 ± 30	0.007
QT_{end Fridericia} (ms)	413 ± 73^c	382 ± 46	368 ± 33	0.021
QT_{end Lilly} (ms)	416 ± 74^c	385 ± 45	369 ± 31	0.013
QT_{end Framingham} (ms)	412 ± 74^c	384 ± 45	369 ± 31	0.023
Q_{peak Bazett} (ms)	305 ± 28	311 ± 42	291 ± 27	NS
QT_{peak Fridericia} (ms)	300 ± 28	305 ±43	289 ± 28	NS
QT_{peak Lilly} (ms)	302 ± 28	308 ± 43	290 ± 27	NS
QT_{peak Framingham} (ms)	302 ± 28	310 ± 41	291 ± 26	NS
T_peak ‐T_{end Bazett} (ms)	116 ± 63^a,c	78 ± 30	79 ± 17	0.002
T_peak ‐T_{end Fridericia} (ms)	113 ± 62^a,c	76 ± 30	79 ± 17	0.003
T_peak ‐T_{end Lilly} (ms)	114 ± 62^a,c	77 ± 30	79 ± 17	0.003
T_peak‐T_{end Framingham} (ms)	121 ± 70^a,c	89 ± 34	83 ± 23	0.015
Coronary disease
1 Vessel	2	1	2	NS
2 Vessels	4	17	14	NS
3 Vessels	6	23	15	NS
LVEF (%)	42 ± 8^b	30 ± 5^d	45 ± 7	0.0001
NYHA class (I/II/III)	1/8/3	3/19/19	6/19/7	NS
Serum K⁺	4.1 ± 0.1	4.1 ± 0.2	4.2 ± 0.3	NS
β‐blockers	8	31	24	NS
Furosemide	4	26	8	NS
ACEi/Sartans	9	29	30	NS
Spironolactone	3	16	8	NS
Digoxin	2	10^e	0	0.033
Amiodarone	2	2	1	NS

Data are expressed as mean ± SD.

P < 0.05 SCD vs LVEF ≤ 35% group. ^bP < 0.001 SCD vs LVEF ≤ 35% group. ^cP < 0.05 SCD vs LVEF > 35% group. ^dP < 0.001 LVEF ≤ 35% vs LVEF > 35% group. ^eP < 0.05 LVEF ≤ 35% vs LVEF > 35% group.

M/F = male/female; BMI = body mass index; HR = heart rate; LVEF = left ventricular ejection fraction; NYHA = New York Heart Association.