Risk factor | Individual score | Total CHADS2 score | % Adjusted stroke rate (95% CI) |
---|---|---|---|
CHF, congestive heart failure; CI, confidence interval; TIA, transient ischaemic attack. | |||
Nil | 0 | 0 | 1.9 (1.2 to 3.0) |
C (recent CHF) | 1 | 1 | 2.8 (2.0 to 3.8) |
H (hypertension) | 1 | 2 | 4.0 (3.1 to 5.1) |
A (age ⩾75 years) | 1 | 3 | 5.9 (4.6 to 7.3) |
D (diabetes mellitus) | 1 | 4 | 8.5 (6.3 to 11.1) |
S2 (history of stroke or TIA) | 2 | 5 | 12.5 (8.2 to 17.5) |
6 | 18.2 (10.5 to 27.4) |