CFP and urinary bladder cancer: In addition, a study was also conducted on 21 benzamidine operators who were tested for serum properdin levels over time and found that serum properdin level was negatively correlated with the risk of bladder cancer, which is consistent with the results of our analysis, suggesting that CFP may serve as a prognostic biomarker 23.On this basis, we explored the relationship between CFP and tumor prognosis using independent and tumor prognosis-related data and found that the expression of CFP in LUAD and STAD had the same prognostic value.