Myocardial bridging of the left anterior descending coronary artery as a risk factor for atrial fibrillation in patients with hypertrophic obstructive cardiomyopathy: a matched case–control study

Table 2 Conditional logistic regression models for analysis of the risk factors of AF

Variable	Univariate	P	Multivariate	P
Variable	OR (95%CI)	P	OR (95%CI)	P
Age	1.02 (0.97–1.06)	0.51
MB	3.13 (1.57–6.12)	0.001	2.33 (1.08–5.01)	0.031
PH	2.55 (1.33–4.87)	0.005	2.63 (1.26–5.47)	0.01
Diabetes	1.24 (0.51–3.04)	0.633
Hyperlipemia	1.85 (1.19–2.90)	0.008	1.83 (1.12–3.00)	0.016
Left atrial diameter	1.10 (1.06–1.13)	< 0.001	1.09 (1.05–1.13)	< 0.001
IVST	1.05 (1.01–1.10)	0.020	1.06 (1.003–1.12)	0.037
LVOT gradient	0.99 (0.982–0.999)	0.030

OR, odds ratio; CI, confidence interval; MB, myocardial bridging; PH, pulmonary arterial hypertension; IVST, interventricular septal thickness; LVOT, left ventricular outflow tract

ISSN: 1471-2261