Table 2. Breakdown of percentage of patients with atrial fibrillation in each study along with individual study–level outcomes.
| Study | location | Number of patients | Follow up (mean in years) | Patients with AF (%) | Total events | Total events in AF (SCD–HF–Stroke) | Events in non–AF (Breakdown to SCD–HF–Stroke) |
|---|---|---|---|---|---|---|---|
| Robinson 1990 | UK | 174 | 7* | 52 [29] | 50¶ | 22 | 28 |
| Higashikwa 1997 | Japan | 83 | 5 | 19 (22.9) | 6† | 1 | 5 |
| Marron 2000 | Italy and Minneapolis–USA | 744 | 8±7 | 153 (19.7) | 86† | 41 (14–17–10) | 45 (30–14–1) |
| Tian 2013 | China | 654 | 4.2±2.8 | 158 (2.4) | 57† | 22 (8–7–7) | 28 (11–15–2) |
| Siontis 2014 | Rochester–USA | 3,673 | 6.1 | 650 (17.7) | 1068¶ | 270 | 798 |
| Desai 2015 | Cleveland–USA | 1,530 | 8.1±6 | 282 (18.4) | 156‡† | 49 | 107 |
AF, atrial fibrillation; SCD, sudden cardiac death; HF, heart failure; UK, United Kingdom. *, Median; ‡, including ICD shocks; ¶, all-cause mortality; †, cardiac mortality.