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Effect of smoking reduction on later cessation: a pilot experimental study
Matthew J Carpenter1, John R Hughes, Josue P Keely
1Department of Psychiatry, University of Vermont Burlington, VT, USA. carpenter@musc.edu
Summary
Reducing cigarette intake in smokers not intending to quit did not significantly alter their future quit attempts or success rates. This pilot study suggests that smoking reduction strategies may be a neutral option for cessation interest.
Area of Science:
- Public Health
- Addiction Medicine
- Behavioral Science
Background:
- Uncertainty exists regarding the impact of smoking reduction on future cessation attempts among smokers not actively trying to quit.
- Understanding this relationship is crucial for developing effective public health strategies for tobacco control.
Purpose of the Study:
- To investigate whether reducing cigarette consumption in smokers uninterested in quitting influences their likelihood of future quitting.
- To evaluate the effectiveness of a combined behavioral treatment and nicotine replacement therapy (NRT) approach for smoking reduction.
Main Methods:
- A pilot study randomized 67 smokers not interested in quitting into two groups: experimental (behavioral treatment + NRT for 50% reduction) and usual care (brief advice + NRT if decided to quit).
- Smoking reduction was monitored over 4 weeks, with follow-up for 6 months to assess changes in stage of change, quit attempts, and sustained abstinence.
Main Results:
- Experimental participants significantly reduced daily cigarette consumption from 23 to 14 (p<.01) and maintained this reduction.
- At 6 months, no significant differences were observed in stage of change progression (35% vs. 41%), 24-hour quit attempts (34% vs. 25%), or sustained quitting (9% vs. 13%) between groups.
- The higher-than-expected cessation rates in the usual-care group suggest the study population may have had above-average motivation to quit.
Conclusions:
- Adding a smoking reduction option to brief advice and NRT does not appear to increase or decrease interest in cessation among smokers not currently motivated to quit.
- Further research is needed in populations with lower motivation to quit to confirm these preliminary findings.
- Smoking reduction may be a neutral strategy, neither hindering nor promoting subsequent cessation efforts.