润色这段话使这段话符合英文论文的表达逻辑：Klapproth and colleagues compared QLU-C10D and PROPr scores in samples of German breast cancer patients Although the two scales showed a strong correlation it cannot be determined

Klapproth and colleagues conducted a comparison between QLU-C10D and PROPr scores in a sample of German breast cancer patients. Although a strong correlation was observed between the two scales, it is not possible to determine which scale had a better score in breast cancer patients due to the different measurement methods for HSU used in the two scales. Furthermore, most studies have utilized EQ-5D as a reference scale to validate the measurement properties of QLU-C10D. For instance, Gamper et al. examined the relative validity of QLU-C10D and EQ-5D-3L in myelodysplastic syndrome and found that the QLU-C10D scale demonstrated superior validity and was better suited for economic evaluation studies of MDS. However, Bulamu et al. compared the responsiveness and convergent validity of QLU-C10D and EQ-5D-3L in post-esophageal cancer surgery patients and found that the measurement properties of QLU-C10D and EQ-5D-3L scales were comparable. Existing research also reveals discrepancies in the conclusions drawn from comparing 5L and 3L with QLU-C10D. For example, Chen-Wei Pan et al. initially selected EQ-5D-5L as a universal scale and compared the measurement properties of utility scores from different country-specific value sets with QLU-C10D, demonstrating that the two scales exhibited similar convergent validity and between-group validity, with EQ-5D-5L scores potentially demonstrating better discriminative ability. This study validated the relevant measurement properties of QLU-C10D in Chinese cancer patients; however, it was not utilized at that time due to the absence of a utility scoring system based on the Chinese population