Letters New cancers on emergency admission

Care is needed in epidemiological research not to overgeneralise about cancer diagnosis and treatment

BMJ 2013; 347 doi: https://doi.org/10.1136/bmj.f7337 (Published 09 December 2013) Cite this as: BMJ 2013;347:f7337
  1. Carmen Tsang, research fellow1,
  2. Alex Bottle, senior lecturer2,
  3. Azeem Majeed, professor of primary care2,
  4. Paul Aylin, clinical reader in epidemiology and public health2
  1. 1London School of Hygiene and Tropical Medicine, London WC1H 9SH, UK
  2. 2Imperial College London, London, UK
  1. carmen.tsang{at}lshtm.ac.uk

We agree with McCartney’s suggestion that researchers must be cautious about how they report their findings in papers for publication and in their contacts with the media.1

The limitations of secondary uses of data in research, including potential incompleteness, poor accuracy, and missing clinical data of value to research, have been well established and discussed. In our …

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