Table 3.

Relationship between numbers of independent factors associated with atrial fibrillation and Odds of having atrial fibrillation. Patient without any of these 4 factors were treated as the reference group

Number of factors associated with AF	OR	95 % CI	P value
0	reference
1	1.64	1.07–2.51	0.022
2	2.46	1.66–3.63	<0.001
3	4.30	2.90–6.38	<0.001
4	8.99	5.02–16.07	<0.001

AF atrial fibrillation, OR Odds ratio, CI confidence interval