Table 3. Comparing the CHA₂DS₂-VASc and CHADS₂ scoring systems in study group.

Scoring systems	Mean SD	Categories
		Low-intermediate risk, <2 points	High risk, ≥2 points
CHADS2	2±1.4	49 (44.5%)	61 (55.4%)
CHA2DS2-VASc	3.6±1.8	13 (11.6%)	97 (88.1%)

P<0.001, χ²=29.106. The proportion of patients in high-risk category (≥2 points) was significantly higher for CHA₂DS₂-VASc than that of CHADS₂ score.