Letters Smoking cessation and mental health

Authors’ reply to Sanderson and colleagues

BMJ 2014; 348 doi: https://doi.org/10.1136/bmj.g2031 (Published 10 March 2014) Cite this as: BMJ 2014;348:g2031
  1. Paul Aveyard, professor of behavioural medicine1,
  2. Gemma Taylor, doctoral researcher2,
  3. Nicola Lindson-Hawley, research fellow2,
  4. Ann McNeill, professor of tobacco addiction2
  1. 1Department of Primary Care Health Sciences, University of Oxford, Oxford OX1 2ET, UK
  2. 2UK Centre for Tobacco and Alcohol Studies, Epidemiology and Public Health, University of Nottingham, Nottingham, UK
  1. paul.aveyard{at}phc.ox.ac.uk

Sanderson and colleagues wonder whether people try to quit smoking when mood improves and whether this could explain the association between quitting and improved mood in some of our cohorts.1 2 However, in more than half the studies, participants’ mood was assessed initially and then all attempted to quit immediately, so improved mood cannot have caused the decision to quit.

Could a third factor explain both the success of quit attempts and improvements in mood? This factor, selectively associated with quitting, would have to …

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