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Table 2 Univariate and stepwise forward multivariate regression analysis of determinants of discrepancy between left atrial volume obtained by computed tomography and 3D electroanatomical mapping

From: 3D electroanatomical mapping is less sensitive to atrial remodeling in estimation of true left atrial volume than echocardiography

 

Univariate analysis

Multivariate analysis

 

YES (ml)

NO (ml)

p value

Regression coefficient (95% CI)

p value

Intercept

7 (−3; 18)

0.16

Male gender

6.4 ± 23

−3.8 ± 19

0.04

5 (− 1; 18)

0.08

Paroxysmal AF

−1.4 ± 22

9.4 ± 22

0.02

−5 (− 16; 6)

0.34

Age > 65 years

− 0.8 ± 22

6.0 ± 23

0.15

−0.1 (− 0.7; 0.4)

0.67

Arterial hypertension

1.6 ± 23

8.1 ± 21

0.20

−5 (− 15; 6)

0.36

Diabetes mellitus

−3.5 ± 22

4.9 ± 21

0.18

8 (−6; 21)

0.27

Structural heart disease

−3.6 ± 28

5.7 ± 20

0.09

−9 (−20; 2)

0.09

SR during CT

−1.1 ± 23

11.3 ± 20

0.008

−12 (−21; − 3)

0.008

  1. Values are in format mean ± SD. In multivariate analysis YES = 1; NO = 0. LAVCARTO left atrial volume obtained by electroanatomical mapping; SR sinus rhythm; CI confidence interval