Convergence Validity Assessment: Correlation and Normal Distribution of Utility Values in C10D and EQ-5D-5L

A preliminary assessment was conducted to examine the correlation and normal distribution of the utility values derived from the C10D and EQ-5D-5L scales. The Spearman correlation coefficient was employed to ascertain the correlation between C10D and EQ-5D-5L, with the resulting test outcomes serving as indicators of convergence validity.