The ATRIA stroke risk score is a tool used to assess an individual's risk of experiencing a stroke. This assessment involves several personal health factors that contribute to the overall risk, and the score reflects the cumulative impact of these factors.

To calculate the score, the tool assigns points to various inputs based on predefined risk categories:

- Age:
  - Under 65 years is assigned 0 points.
  - 65 to 74 years is assigned 3 points.
  - 75 to 84 years is assigned 5 points.
  - 85 years and older is assigned 6 points.

- Gender:
  - Female is assigned 1 point.
  - Male is assigned 0 points.

- History of diabetes mellitus:
  - Yes is assigned 1 point.
  - No is assigned 0 points.

- History of chronic heart failure:
  - Yes is assigned 1 point.
  - No is assigned 0 points.

- History of hypertension:
  - Yes is assigned 1 point.
  - No is assigned 0 points.

- Proteinuria (presence of excess protein in urine):
  - Yes is assigned 1 point.
  - No is assigned 0 points.

- eGFR < 45 or end-stage renal disease:
  - Yes is assigned 1 point.
  - No is assigned 0 points.

The total score is calculated by adding up the points from each category. This total score, ranging from 0 to 12, helps classify the stroke risk level:

- Scores of 0 to 5 are interpreted as a low risk of stroke.
- A score of 6 indicates a moderate risk of stroke.
- Scores of 7 or more signify a high risk of stroke.

This comprehensive evaluation enables individuals and healthcare providers to understand the relative risk associated with various health conditions and demographic factors, empowering informed discussions around stroke prevention.

The ATRIA (Anticoagulation and Risk Factors in Atrial Fibrillation) Stroke Risk Score is a clinical calculator used to assess the risk of stroke in patients with atrial fibrillation. This scoring system is particularly useful in guiding clinicians in making decisions about anticoagulation therapy for these patients. 

The ATRIA score includes factors such as age, prior stroke or transient ischemic attack, diabetes, hypertension, heart failure, proteinuria, and renal disease. Each factor is assigned a certain number of points, and the total score is used to categorize patients into low, moderate, or high risk of stroke.

The ATRIA score is not recommended for use in patients without atrial fibrillation, or in those with conditions that may independently increase stroke risk, such as mechanical heart valves or a history of venous thromboembolism.

ATRIA stroke risk score

Comparison of the ATRIA, CHADS2, and CHA2DS2-VASc stroke risk scores in predicting ischaemic stroke in a large Swedish cohort of patients with atrial fibrillation.