Criteria (mnemonic: CHADS)
- Congestive Heart Failure (1 point)
- Relative risk of Stroke or TIA: 1.4
- Hypertension (1 point)
- Relative risk of Stroke or TIA: 1.6
- Age over 75 years (1 point)
- Relative risk of Stroke or TIA: 1.4
- Diabetes Mellitus (1 point)
- Relative risk of Stroke or TIA: 1.7
- Stroke or TIA history (2 points)
- Mitral Stenosis or prosthetic Heart Valve carry similar risk and also indicate Warfarin
- Relative risk of Stroke or TIA: 2.5
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