Short term and medium term prognostic significance of atrial fibrillation developing in hospital
| RR unadjusted | 95% CI | RR adjusted | 95% CI | |
| In-hospital mortality | 3.01 | 2.55 to 3.55 | 1.98 | 1.67 to 2.34 |
| Six month mortality | 2.93 | 2.40 to 3.57 | 1.81 | 1.48 to 2.23 |
CI, confidence interval; RR, relative risk.