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Table 5 Clinical outcome comparisons between 2 groups of non–high-risk and high-risk CHA2DS2-VASc scores

From: Assessment of the ability of the CHA2DS2-VASc scoring system to grade left atrial function by 2D speckle-tracking echocardiography

Group Variables P value
Non-High-Riska Score
(N = 109)
High-Risk Score
(N = 203)
RR, 95% CI
Mortality 2 (2) 6 (3) 1.61 (0.33–7.85) 0.555
Postoperative atrial fibrillation 1 (1) 18 (9) 9.67 (1.31–71.43) 0.026
Prolonged ICU stay 1 (1) 15 (7) 8.05 (1.08–60.16) 0.042
Prolonged mechanical ventilation 2 (2) 11 (5) 2.95 (0.67–13.09) 0.154
  1. aNon-high-risk group was comprised of 30 patients with low risk scores and 79 patients with moderate risk scores
  2. CI, confidence interval; ICU, intensive care unit; RR, relative risk