Multivariate analysis of the significant influence further indicated that age (HR = 1.044, 95% CI = 1.008–1.081; P = 0.017), tumor stage (HR = 6.783, 95% CI = 3.079–14.943; P < 0.001), MIR205HG (HR = 0.351, 95% CI = 0.163–0.756; P = 0.007), and GAS5 (HR = 0.350, 95% CI = 0.133–0.920; P = 0.033) were independent prognostic factors for the PFS of NMIBC (Supplementary Table S9). The gene discussed is GAS5; the disease is neoplasm.