Psychosocial interventions do promote smoking abstinence in people with coronary heart disease

Clinical question: 
How effective are psychosocial interventions in helping people with coronary heart disease (CHD) to quit smoking?
Bottom line: 
Psychosocial (behavioural) smoking cessation interventions are effective in promoting abstinence at 6 to 12 months, provided they are of sufficient duration, ie, more than 1 month (median NNT*4, range 3–6). Brief interventions without some follow-up contact were not effective. Most trials used a mixture of different intervention strategies, therefore, no single strategy showed superior efficacy. *NNT = number needed to treat to benefit 1 individual.
The validation of smoking status was not a standard procedure in the trials, with only 7 trials describing any measure of biochemical validation. There were no studies comparing psychosocial interventions with pharmacological therapy (eg, nicotine replacement therapy) or with pharmacological therapy plus psychosocial interventions.
Smoking is a major risk factor for CHD, and stopping smoking lowers that risk. Psychosocial interventions that can assist quitting and promote abstinence include behavioural counselling, telephone support and self-help interventions.
Review CD#: 
June, 2008
Authored by: 
Brian R McAvoy