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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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and analysis<\/jats:title><jats:p>This is a three-arm cluster randomised controlled trial. 462 eligible participants will be assigned to 2 financial incentive groups\u2014rewards 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\u2009month 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\u2009month 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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Ethics and dissemination<\/jats:title><jats:p>This 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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Trial registration number<\/jats:title><jats:p>ChiCTR-IOR-2300069631.<\/jats:p><\/jats:sec>","DOI":"10.1136\/bmjopen-2023-080344","type":"journal-article","created":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T01:25:38Z","timestamp":1716427538000},"page":"e080344","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Financial incentive interventions for smoking cessation among Chinese smokers: study protocol for a cluster randomised controlled trial"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7948-2249","authenticated-orcid":false,"given":"Xiaochen","family":"Yang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9985-9266","authenticated-orcid":false,"given":"Omar","family":"Gal\u00e1rraga","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wangnan","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2952-0299","authenticated-orcid":false,"given":"Haoxiang","family":"Lin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1076-9767","authenticated-orcid":false,"given":"Fei","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3337-678X","authenticated-orcid":false,"given":"Chun","family":"Chang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,4,29]]},"reference":[{"key":"2024052109130860000_14.4.e080344.1","doi-asserted-by":"publisher","DOI":"10.1136\/tobaccocontrol-2016-053305"},{"key":"2024052109130860000_14.4.e080344.2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(21)01169-7"},{"key":"2024052109130860000_14.4.e080344.3","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpsychires.2013.09.014"},{"key":"2024052109130860000_14.4.e080344.4","unstructured":"The Tobacco Control Office of the Chinese Center for Disease Control and Prevention . 2018 China adult tobacco survey report 2018. n.d. 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