Evaluation of a Combined Financial Incentives and Deposit Contract Intervention for Smoking Cessation: A Randomized Controlled Trial

The objective of this study is to evaluate whether a combination of financial incentives and deposit contracts improves cessation among low- to moderate-income smokers. The estimated treatment effects on cessation are positive, but imprecise, with confidence intervals containing effect sizes estimated by prior studies of financial incentives alone and deposit contracts alone. A combined incentives and deposit contract program for Medicaid enrollees, with incentives offering up to $300 for smoking cessation and use of support services, produced a positive but imprecisely estimated effect on biochemically-verified cessation relative to usual care and with no detectable difference in cessation rates between different treatment arms.

本研究旨在评估经济激励与押金合约联合方案，能否提升中低收入吸烟者的戒烟成功率。研究估算得出的戒烟干预效应为正向，但精度有限，其置信区间涵盖了此前仅针对单一经济激励、仅针对单一押金合约的相关研究所得到的效应量。针对医疗救助计划（Medicaid）参保人群推出的上述联合项目，可为成功戒烟及使用相关支持服务的对象提供最高300美元的奖励；与常规护理相比，该项目对经生化验证的戒烟率产生了正向但精度不足的干预效应，且不同干预组间的戒烟率未检测出显著差异。