highly significantp -value < 0.001
The analysis yielded highly significant positive associations for the following variables (listing according to strength of association): previous ablation therapy ( p -value < 0.001; OR 3.87), previous family history of CAD ( p -value 0.011, OR 2.57), previous electric cardioversion ( p -value < 0.001, OR 2.54), substitution therapy with magnesium ( p -value < 0.001, OR 2.32), administration of beta-blockers ( p -value < 0.001, OR 1.91).