Table 3.
Number of Events, Patient‐Years, and Event Rate per 100 Patient‐Years With Exact 95% Poisson CIs by CHA2DS2‐VASc Score at Discharge Among 6368 Patients With New‐Onset POAF Followed Up on Average 5 Years
| CHA2DS2‐VASc score | Ischemic stroke | Any thromboembolism | ||||
|---|---|---|---|---|---|---|
| No. of events (n=473) | Patient‐years (n=27 472) | Event rate/100 patient‐years (95% CI) | No. of events (n=639) | Patient‐years (n=26 990) | Event rate/100 patient‐years (95% CI) | |
| 1 | 3 | 1823 | 0.2 (0.0–0.5) | 13 | 1806 | 0.7 (0.4–1.2) |
| 2 | 36 | 5325 | 0.7 (0.5–0.9) | 60 | 5241 | 1.1 (0.9–1.5) |
| 3 | 87 | 7422 | 1.2 (0.9–1.5) | 128 | 7314 | 1.8 (1.5–2.0) |
| 4 | 116 | 6792 | 1.7 (1.4–2.0) | 148 | 6700 | 2.2 (1.9–2.6) |
| 5 | 114 | 3968 | 2.9 (2.4–3.5) | 143 | 3874 | 3.7 (3.1–4.4) |
| 6 | 70 | 1448 | 4.8 (3.8–6.1) | 87 | 1402 | 6.2 (5.0–7.7) |
| 7 | 34 | 550 | 6.2 (4.3–8.6) | 41 | 515 | 8.0 (5.7–10.8) |
| 8–9 | 13 | 144 | 9.0 (4.8–15.4) | 19 | 138 | 13.7 (8.3–21.5) |
CHA2DS2‐VASc indicates congestive heart failure, hypertension, age ≥75 years, diabetes, previous stroke or TIA [transient ischemic attack], vascular disease, age 65 to 74 years, sex category female; and POAF, postoperative atrial fibrillation.