title: The redundant factor method and bladder cancer mortality.
abstract: Of the three factors, age at death, epoch of death, and epoch of birth, one seems almost superfluous. It may nevertheless be worthwhile to include all three in a mortality analysis, allowing for the constraints that the redundancy imposes. This procedure is applied to data for England and Wales on bladder cancer mortality from 1951 to 1970.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D004739:England; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D001749:Urinary Bladder Neoplasms / Q000401:mortality*; D014852:Wales