Association between PA and AF (HR ±95% CI): the Tromsø Study 1994–1995
| N (n=2479) | AF events, % (n) | Person-years (mean±SD) | Model 1, HR (95% CI) | Model 1, P-value | Model 2, HR (95% CI) | Model 2, P-value | |
| Inactive | 1502 | 17.9 (269) | 15.9 (6.7) | 1.00 (ref.) | 1.00 (ref.) | ||
| Low | 383 | 13.1 (50) | 17.4 (6.5) | 0.64 (0.47 to 0.87) | 0.004 | 0.80 (0.59 to 1.09) | 0.150 |
| Moderate | 391 | 12.3 (48) | 17.8 (6.0) | 0.59 (0.43 to 0.80) | 0.001 | 0.68 (0.50 to 0.93) | 0.017 |
| Vigorous | 203 | 15.8 (32) | 17.7 (6.1) | 0.76 (0.53 to 1.09) | 0.138 | 0.87 (0.60 to 1.27) | 0.473 |
Model 1 was unadjusted. Model 2 was adjusted for age, sex, body mass index and systolic blood pressure.
AF, atrial fibrillation; PA, physical activity; ref., reference.