LRG1 and cancer: The median serum levels of LRG1, including the interquartile range, were 63.2 (42.8–94.2) μg/mL in ccRCC, 23.4 (17.7–29.6) μg/mL in non-ccRCC, and 36.0 (23.7–56.7) μg/mL in non-cancer patients, respectively (Fig. 2).