Latent heterogeneity of muscle-invasive bladder cancer in patient characteristics and survival : A population-based nation-wide study in the Bladder Cancer Data Base Sweden (BladderBaSe)
Background: Patients with muscle-invasive bladder cancer (MIBC) constitute a heterogenous group in terms of patient and tumour characteristics (‘case-mix’) and prognosis. The aim of the current study was to investigate whether differences in survival could be used to separate MIBC patients into separate classes using a recently developed latent class regression method for survival analysis with co