NEJM - Financial-Incentives for Smoking Cessation

"Randomized Trial of Four Financial-Incentive Programs for Smoking Cessation"

"CONCLUSIONS

Reward-based programs were much more commonly accepted than deposit-based programs, leading to higher rates of sustained abstinence from smoking. Group-oriented incentive programs were no more effective than individual-oriented programs. (Funded by the National Institutes of Health and CVS Caremark; ClinicalTrials.gov number, NCT01526265.)"

http://www.nejm.org/doi/full/10.1056/NEJMoa1414293