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. 2021 Mar 17;16(3):e0248770. doi: 10.1371/journal.pone.0248770

Fig 2. ROC curve for laryngeal duration (static phase).

Fig 2

The cut-off value was 0.26 sec (sensitivity, 72.2%; specificity, 88.9%). The area under the ROC curve was 0.744; Standard error 0.091; Significance 0.012; Confidence interval 0.566–0.922.