Financial incentive interventions for smoking cessation among Chinese smokers: study protocol for a cluster randomised controlled trial

Author:

Yang XiaochenORCID,Galárraga OmarORCID,Cao Wangnan,Lin HaoxiangORCID,Cao FeiORCID,Chang ChunORCID

Abstract

IntroductionThere is an urgent issue to relieve the burdens caused by tobacco use through feasible and effective smoking cessation interventions, particularly in a middle-income country with less accessible smoking cessation services and high demand for quitting smoking. Financial incentives have shown effective in changing health behaviours, thus needing to test its portability to a wider implementation and effectiveness of increasing smoking cessation rates.Methods and analysisThis is a three-arm cluster randomised controlled trial. 462 eligible participants will be assigned to 2 financial incentive groups—rewards or deposits, or the control group. All participants including those in the control group will receive text messages to help quitting smoking developed by the US National Cancer Institute over a 3-month intervention period. In addition to text messages, reward group participants will be rewarded with CNY200 and CNY400 (CNY100 approximately US$15) for sustained smoking abstinence at 1 month and 3 months follow-up assessments; participants in the deposit group will accumulate CNY200 and CNY600 in the deposit accounts after verified smoking abstinence at 1 month and 3 months follow-up assessments, and all the deposits will be given at once right after the 3-month follow-up visit. The primary outcome is biochemically verified smoking abstinence rate sustained for 6 months after enrolment.Ethics and disseminationThis trial protocol has been approved by the Ethics Committee of Peking University Health Science Centre (date: 23 February 2023; ethical approval number: IRB00001052-22172). Results and findings of this trial will be disseminated in peer-reviewed journals and professional conferences.Trial registration numberChiCTR-IOR-2300069631.

Funder

National Natural Science Foundation of China

Publisher

BMJ

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