Table 4. Absolute Risk of AF Rehospitalization, Initiation of Anticoagulation Therapy, and Death in Patients With New-Onset AF After Community-Acquired Pneumonia Not Receiving OAC Therapy.
| Strata | Risk, % (95% CI) | |||||
|---|---|---|---|---|---|---|
| AF rehospitalization | OAC initiation | All-cause deatha | ||||
| 1-y Follow-up | 3-y Follow-up | 1-y Follow-up | 3-y Follow-up | 1-y Follow-up | 3-y Follow-up | |
| New-onset AF | 20.5 (19.6-21.5) | 32.9 (31.8-34.1) | 8.7 (8.1-9.4) | 14.0 (13.2-14.9) | 26.3 (25.2-27.4) | 49.8 (48.6-51.1) |
| Baseline stroke riskb | ||||||
| Low | 16.2 (12.7-20.0) | 27.7 (23.3-32.2) | 6.7 (4.5-9.4) | 14.5 (11.2-18.2) | 10.8 (8.1-14.4) | 17.6 (14.2-21.9) |
| Intermediate | 19.9 (18.4-21.5) | 31.6 (29.8-33.5) | 9.9 (8.7-11.1) | 16.1 (14.7-17.6) | 22.8 (21.3-24.5) | 43.7 (41.8-45.7) |
| High | 21.5 (20.1-22.8) | 34.3 (32.8-35.9) | 8.1 (7.3-9.1) | 12.5 (11.4-13.6) | 30.4 (29.0-32.0) | 57.7 (56.1-59.4) |
Abbreviations: AF, atrial fibrillation; OAC, oral anticoagulation.
a
Death was treated as a competing risk.
b
Among patients with new-onset AF, baseline stroke risk was determined according to CHA2DS2-VASc score (congestive heart failure or left ventricular ejection fraction ≤40%; hypertension; age ≥75 years; diabetes; stroke, transient ischemic attack, or thromboembolism history; vascular disease; age 65-74 years; and female sex) assigned points: low risk (0-1, no risk factors when disregarding female sex as a lone risk factor), intermediate risk (1-2 risk factors), and high risk (≥3 risk factors) where points for female sex were not taken into account.