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. 2022 Sep 1;18(9):2197–2205. doi: 10.5664/jcsm.10082

Figure 4. NNV in HSAT-PAT at baseline and after 1 year shown in Bland–Altman plots.

Figure 4

(A) NNV in HSAT-PAT at baseline. (B) NNV in HSAT-PAT after 1 year. The horizontal solid line is the mean value, and the dotted lines represent the limits of agreement (mean ± 1.96 × SD). Data for 2 nights are available for 20 patients at baseline and 32 patients after 1 year. The residual patients had HSAT-PAT for 1 night only and NNV could not be shown. AHI = apnea-hypopnea index, HST-PAT = home sleep apnea testing with peripheral arterial tonometry, NNV = night-to-night variability, SD = standard deviation.