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Efficacy of a universal smoking cessation intervention initiated in inpatient psychiatry and continued post-discharge: A randomised controlled trial

Metse, A.P.ORCID: 0000-0002-8641-1024, Wiggers, J., Wye, P., Wolfenden, L., Freund, M., Clancy, R., Stockings, E., Terry, M., Allan, J., Colyvas, K., Prochaska, J.J. and Bowman, J.A. (2017) Efficacy of a universal smoking cessation intervention initiated in inpatient psychiatry and continued post-discharge: A randomised controlled trial. Australian & New Zealand Journal of Psychiatry, 51 (4). pp. 366-381.

Link to Published Version: https://doi.org/10.1177/0004867417692424
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Abstract

Objective:
Interventions are required to redress the disproportionate tobacco-related health burden experienced by persons with a mental illness. This study aimed to assess the efficacy of a universal smoking cessation intervention initiated within an acute psychiatric inpatient setting and continued post-discharge in reducing smoking prevalence and increasing quitting behaviours.

Method:
A randomised controlled trial was undertaken across four psychiatric inpatient facilities in Australia. Participants (N = 754) were randomised to receive either usual care (n = 375) or an intervention comprising a brief motivational interview and self-help material while in hospital, followed by a 4-month pharmacological and psychosocial intervention (n = 379) upon discharge. Primary outcomes assessed at 6 and 12 months post-discharge were 7-day point prevalence and 1-month prolonged smoking abstinence. A number of secondary smoking-related outcomes were also assessed. Subgroup analyses were conducted based on psychiatric diagnosis, baseline readiness to quit and nicotine dependence.

Results:
Seven-day point prevalence abstinence was higher for intervention participants (15.8%) than controls (9.3%) at 6 months post-discharge (odds ratio = 1.07, p = 0.04), but not at 12 months (13.4% and 10.0%, respectively; odds ratio = 1.03, p = 0.25). Significant intervention effects were not found on measures of prolonged abstinence at either 6 or 12 months post-discharge. Differential intervention effects for the primary outcomes were not detected for any subgroups. At both 6 and 12 months post-discharge, intervention group participants were significantly more likely to smoke fewer cigarettes per day, have reduced cigarette consumption by ⩾50% and to have made at least one quit attempt, relative to controls.

Conclusions:
Universal smoking cessation treatment initiated in inpatient psychiatry and continued post-discharge was efficacious in increasing 7-day point prevalence smoking cessation rates and related quitting behaviours at 6 months post-discharge, with sustained effects on quitting behaviour at 12 months. Further research is required to identify strategies for achieving longer term smoking cessation.

Item Type: Journal Article
Publisher: Sage
Copyright: © 2017 by SAGE Publications
URI: http://researchrepository.murdoch.edu.au/id/eprint/43118
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