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. 2014 Dec 26;9(12):e115777. doi: 10.1371/journal.pone.0115777

Figure 3. Summary of SROCs of spot signs on first-pass CTA or combined CT modalities for predicting hematoma expansion.

Figure 3

The curve is the regression line that summarizes the overall predictive accuracy. The upper and lower curves represent confidence intervals. Squares indicate individual study estimates of sensitivity and 1-specificity. The size of each square is proportional to the sample size of the corresponding study. Q*, the maximum joint sensitivity and specificity on a symmetric ROC curve; SE (AUC), standard error of AUC; SE (Q*), standard error of the Q* value. (A) first-pass CTA; (B) combined CT modalities.