Fig. 2From: A head-to-head comparison of the EQ-5D-5L and 15D descriptive systems and index values in a general population sampleBland–Altman plot of EQ-5D-5L and 15D index values. The horizontal red line represents the mean of the differences (D) between EQ-5D-5L and 15D index values, while the 95% confidence interval is represented by the dashed lines, which was obtained as D ± 1.96*SD (SD: standard deviation of the differences)Back to article page