Table 3.

Univariate and logistic multivariate backward analysis between

Univariate			Backward multivariable regression analysis
Variable	ß	P	Variable	ß	P	OR	CI
Presence of AFib
Age	0.78	0.0001		0.063	0.021	1.06	1.01-1.12
Gender	−0.2	0.6
LA Vol	0.009	0.06
Mean MV pressure gradient	1.29	0.13		−0.28	0.007	0.81	0.69-0.94
MVA by PHT	−0.38	0.49
LASr	−0.228	0.0001		−0.26	0.001	0.76	0.67-0.95
Presence of PASP ≥50 mmHg
Age	0.16	0.4
Gender	1.15	0.027
LA Vol	0.009	0.07
Mean MV pressure	0.17	0.001		0.16	0.003	1.17	1.06-1.30
MVA by PHT	−1.37	0.08
LASr	−1.56	0.005		−0.156	0.008	0.85	0.76-0.96
Presence of PASP ≥50 mmHg and/or AFib
Age	0.08	0.6		−0.081	0.004	1.08	1.02-1.14
Gender	0.57	0.2
LA Vol	0.01	0.02
Mean MV pressure	0.015	0.7
MVA by PHT	−1.01	0.08		−2.106	0.023	0.12	0.02-0.7
LASr	−0.267	0.0001		−0.272	0.0001	0.76	0.67-0.859

LA: Left atrium, MV: Mitral valve, PHT: Pressure half time, AFib: atrial fibrillation, PASP: Pulmonary artery systolic pressure, LASr: left atrium reservoir strain, MVA: mitral valve area