Validation of a Polish version of the National Institutes of Health Stroke Scale: Do moderate psychometric properties affect its clinical utility?
Fig 2
Bland–Altman diagram indicating the repeatability of the Polish version of the National Institutes of Health Stroke Scale (PL-NIHSS).
The distribution of plots is based on the mean and difference from the total PL-NIHSS scores obtained by two randomly selected examiners. The limits of agreement occupy the area between the dashed lines. The 95% confidence interval of the regression line is located between the orange bold lines.