Average annual recurrent cerebral ischemias in patients with PFO. A comparison with other studies
| Source (1st author) | Number of patients | Stroke | Stroke and/or TIA |
|---|---|---|---|
| *In the original article the overall cumulative estimate of risk of cerebrovascular event recurrence is given. We derived the average annual event rate from the overall cumulative estimate of risk of stroke or TIA recurrence, at 3 years of follow up, according to the formula 1-(1-P)1/n, where P equals the cumulative event rate at n years of follow up. | |||
| Mas12 | 132 | 1.2% | 3.4% |
| Bogousslavsky20 | 140 | 2.4% | 3.8% |
| De Castro9 | 74 | 2.4%* | |
| Present study | 157 | 1.8% | 5.5% |