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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 |
