APCDD1L and bladder transitional cell carcinoma: To investigate whether the eight-lncRNA signature could provide an accurate prediction of RFS in BLCA patients, a risk-score formula was created according to the expression of these 8 lncRNAs for RFS prediction, as follows: Risk score = (0.37 × expression value of APCDD1L-AS1) + (2.13 × expression value of FAM225B) + (0.68 × expression value of LINC00626) + (0.03 × expression value of LINC00958) + (0.18 × expression value of LOC100996694) + (−0.56 × expression value of LOC101928111) + (0.11 × expression value of LOC441601) + (−4.26 × expression value of ZSWIM8-AS1).