Table 2.

Baseline patient demographics

Variable	Overall (n=244)	Eligible for CRT (n=184)	Ineligible for CRT (n=60)	P value
Characteristics
Age, ±SD	70.6±10.8	70.8±10.6	69.8±11.5	0.576
Female, N (%)	68 (27.9)	44 (23.9)	24 (40.0)	0.016
Ischaemic aetiology, N (%)	124 (50.8)	97 (52.7)	27 (45.0)	0.299
Comorbidities, N (%)
Hypertension	87 (35.7)	69 (37.50)	18 (30.0)	0.292
Diabetes mellitus	70 (28.7)	58 (31.5)	12 (20.0)	0.087
Chronic kidney disease	60 (23.8)	43 (23.4)	17 (28.3)	0.438
New York Heart Association Functional class, ±SD	2.5±0.7	2.6±0.7	2.4±0.7	0.033
QRS duration, ±SD	156.7±28.2	161.5±26.7	142.0±27.8	<0.001
Left bundle branch block, N (%)	137 (56.1)	109 (59.2)	28 (46.7)	0.088
Echocardiography, ±SD
Left ventricular ejection fraction	31.9±10.2	29.1±8.2	40.5±11.2	<0.001
Left ventricular end-diastolic volume	188.8±78.7	203.7±80.5	140.8±48.0	<0.001
Left ventricular end-systolic volume	129.7±55.8	143.3±53.7	85.8±53.7	<0.001

CRT, cardiac resynchronisation therapy; N, number.