Abstract
Background: The higher the CHA2DS2-VASc score is, the higher the stroke risk is. However, in daily clinical practice there is a significant proportion of stroke patients with atrial fibrillation who present CHA2DS2-VASc = 0 and 1, which belong to the low to moderate risk group. Objectives: To evaluate the correlation of cardiac risk factors with CHA2DS2-VASC score in stroke patients with non-valvular atrial fibrillation. Method: Descriptive cross-sectional study on 91 patients are diagnosed stroke with non-valvular atrial fibrillation. Results: The combination of a risk factor accounted for 13.2%, in which vascular diseases presented 7.7%. The combination of 2 risk factors made up 40.7%, in which hypertension, vascular disease accounted for 28.6%. The combination of 3 risk factors constituted 26.4%, in which heart failure, hypertension and vascular disease accounted for 14.3%. The combination of 4 risk factors made up 18.7%, in which heart failure, hypertension, stroke and vascular disease accounted for 11.0%. The majority of the groups of risk factors with CHA2DS2-VASc score ≥ 6 accounted for a higher percentage than that of two groups including CHA2DS2-VASc = 2-3 and CHA2DS2-VASc 4-5. The mean CHA2DS2-VASC score increased with the number of risk factors and CHA2DS2-VASc score is positively correlated with age with the linear regression equation y = 0.084x-1.662 with the correlation coefficient r = 0,485. Conclusion: Number of risk factors correlated positively with CHA2DS2-VASc scores.