Table 2. Changes of clinical and echocardiographic parameters from baseline to six months follow-up.

	SRs (59)	Non-SRs (142)	Total (201)	P value
NYHA Class
Baseline	2.8 ± 0.6	2.9 ± 0.7	2.9 ± 0.6
Follow-up	2.2 ± 0.7	2.5 ± 0.7	2.4 ± 0.7
Change	0.6 ± 0.8	0.4 ± 0.7	0.5 ± 0.7	0.095
P Value	< 0.001	< 0.001	< 0.001
LVEF, %
Baseline	32.2 ± 8.5	27.4 ± 7.8	28.8 ± 8.3
Follow-up	53.2 ± 5.4	32.4 ± 8.1	38.5 ± 12.1
Change	−21.0 ± 8.4	−4.9 ± 7.3	−9.7 ± 0.7	< 0.001
P Value	< 0.001	< 0.001	< 0.001
LVEDV, mL
Baseline	228.3 ± 58.9	278.3 ± 85.1	263.7 ± 81.4
Follow-up	145.2 ± 46.7	250.5 ± 77.0	219.6 ± 84.4
Change	83.2 ± 56.7	27.8 ± 59.5	44.0 ± 63.7	< 0.001
P Value	< 0.001	< 0.001	< 0.001
LVESV, mL
Baseline	156.5 ± 49.7	205.0 ± 74.5	190.8 ± 71.5
Follow-up	68.7 ± 25.9	173.2 ± 68.3	142.5 ± 75.9
Change	87.9 ± 46.5	31.8 ± 4.3	48.2 ± 56.3	< 0.001
P Value	< 0.001	< 0.001	< 0.001
FMR
Baseline	1.3 ± 0.9	1.6 ± 0.8	1.5 ± 0.8
Follow-up	0.7 ± 0.7	1.1 ± 0.8	1.0 ± 0.8
Change	0.6 ± 0.8	0.4 ± 0.7	0.5 ± 0.7	0.101
P Value	< 0.001	< 0.001	< 0.001
Biv Pacing > 98%	58 (98.3%)	120 (84.5%)	178 (88.6%)	0.005

Data given as mean ± SD. Biv: Biventricular; FMR: functional mitral regurgitation; LVEDV: left ventricular end-diastolic volume; LVEF: left ventricular ejection fraction; LVESV: left ventricular end-systolic volume; NYHA class: New York Heart Association functional class; Non-SRs: non-super responders; SRs: super responders.