MUC16 and ovarian cancer: Importantly, the ovarian cancer group exhibited the highest postprandial increment (increment = postprandial CA125 − fasting CA125) in CA125 level, which reached 13.3 ± 0.7% (p < 0.001 for the difference between fasting CA125 and postprandial CA125 in this group, paired-samples Student’s t test) and was significantly higher than the remaining four groups (p < 0.001 for all, independent-samples Student’s t tests, Fig. 1c).