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Factors influencing the extremes of survival in disseminated breast cancer were analysed. From a pool of 1066 patients with distant metastatic breast cancer, the 41 patients who had survived 5 yr or more from first distant recurrence were matched with the 41 patients with the shortest survival times. Both groups were compared with the pool and, where(More)
Three thousand, six hundred and four patients with carcinoma of the prostate attending the Royal Marsden Hospital, St Peter's Hospitals and all non-teaching hospitals of the South Metropolitan regions were reviewed, in addition, data from 1869 cases of prostatic carcinoma registered in the 2 South Metropolitan regions with determinable social class were(More)
The quality of the recorded diagnosis is a major limit to the usefulness of Cancer Registry statistics that is easily overlooked by users of the data. With data from a large population-based cancer registry as an example, we demonstrate how Registry statistics could be improved by wider use of three simple indices, namely (1) the proportion histologically(More)
Sir-In their article entitled 'The completeness of Cancer Registration in follow-up Studies-a cautionary note', Hunt and Coleman (1987) rightly point out that delays occur in cancer registration. Nevertheless, as their paper shows, nearly half of the apparently missed cases were the result of processing delays at OPCS and the NHSCR. The remainder (excluding(More)
Completeness of ascertainment is a central issue for any disease register. We outline the process of cancer registration as carried out in a large population-based Registry and argue that none of the various methods proposed to estimate the completeness of ascertainment are satisfactory. We suggest an alternative way of looking at the issue and describe(More)