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ROC analysis. The average AUC was 0.90 (95% CI 0.87–0.94). ROC = Receiver operating characteristics, AUC = Area under the curve, CI = Confidence interval, Black circle = Average, White circle = Out of range value, Black solid line = Median, Box = Interquartile range, Dashed line = Range, Upper black line = Maximum value, Bottom black line = Minimum value.
