Review Article

The Association of the Cerebral Protection Strategy with Early Mortality and Postoperative Stroke in Acute Type A Aortic Dissection: A Systematic Review and Meta-Analysis

Figure 2

Funnel plots to assess the risk for publication bias and systematic heterogeneity of proportions of outcome events. Black diagonal lines show 95% confidence interval, and the dark grey area shows 99% confidence interval. (a) = Crude early mortality rate, (b) = adjusted early mortality rate, (c) = crude stroke rate, and (d) = adjusted stroke rate.
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