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. 2020 Aug;12(8):4476–4495. doi: 10.21037/jtd-20-804

Figure 12.

Figure 12

Scatter plot of the AHI values estimated by Firefly versus the PSG reference, for the training and testing set respectively. The Pearson correlation coefficient is 0.90 on the training set, and 0.81 on the test set. AHI, apnea hypopnea index; PSG, polysomnography.