Intended for healthcare professionals

Letters Alcohol and dementia

Methodological difficulties of studying alcohol consumption and dementia

BMJ 2018; 362 doi: https://doi.org/10.1136/bmj.k3894 (Published 19 September 2018) Cite this as: BMJ 2018;362:k3894
  1. Rahul Tony Rao, consultant old age psychiatrist and visiting lecturer
  1. South London and Maudsley NHS Foundation Trust and Institute of Psychiatry, Psychology and Neuroscience, Marina House, London SE5 8RS, UK
  1. tony.rao{at}slam.nhs.uk

Examining the association between alcohol consumption and cognitive impairment is fraught with methodological difficulties, and the results of Sabia and colleagues’ study should be interpreted with a high degree of caution.1 The study tells us little about how drinking above low risk guidance beyond the of age of 55 affects the development of …

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