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. 2018 Jun 4;7(3):13. doi: 10.1167/tvst.7.3.13

Figure 7.

Figure 7

Bland-Altman plots illustrating the interobserver reproducibility of EZ width measurements for (A) HW and (B) VW. HW values are represented by circles, and VW values are represented by crosses. The mean log EZ width difference (bias) is represented by the solid black line, while the dashed lines represent the 95% LOA for the bias. Shaded regions represent the confidence limits on the bias and LOA (see Methods). To assess whether repeatability was dependent on the magnitude of EZ width, we calculated the Pearson correlation coefficient (r) for each data set. (A) r = 0.156, 95% CI = −0.134 to 0.422, P = 0.29; (B) r = 0.178, 95% CI = −0.112 to 0.440, P = 0.23. These values indicate that there is no significant proportional bias. Both data sets passed the test for homoscedasticity, with P > 0.05.