Letters Variation in mortality and use of healthcare

Understanding variation in utilisation: start with health needs

BMJ 2013; 346 doi: http://dx.doi.org/10.1136/bmj.f1800 (Published 28 March 2013) Cite this as: BMJ 2013;346:f1800
  1. Michael A Soljak, clinical research fellow1,
  2. Azeem Majeed, professor of primary care1
  1. 1Department of Primary Care and Public Health, Imperial College London, London W6 8RP, UK
  1. m.soljak{at}imperial.ac.uk

In their paper on the effect of illness adjustment on regional mortality and spending rates using standard and visit corrected illness methods for adjustment, Wennberg and colleagues compare adjustment using diagnoses listed in administrative databases with additional adjustment for the frequency of doctors’ visits.1 They acknowledge that data on the use of healthcare cannot be used directly as a proxy for need or risk because these data also reflect differences in access to …

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