Letters

Study of effect of delays on ovarian cancer was weak

BMJ 2002; 324 doi: https://doi.org/10.1136/bmj.324.7345.1100/a (Published 04 May 2002) Cite this as: BMJ 2002;324:1100
  1. Mark Elwood, director (melwood@ncci.org.au)
  1. National Cancer Control Initiative, Carlton, Victoria 3053, Australia

    EDITOR—Kirwan et al concluded that delays in referral or diagnosis did not adversely affect the survival of patients with ovarian cancer.1 Their analysis of the relation with survival, however, includes stage of diagnosis as a covariate, so if delays adversely affect survival by producing a more advanced stage of disease at presentation …

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